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Geometry S1 Vocabulary

Total questions: 84

Worksheet time: 42mins

Name
Class
Date
1.

What is defined as 'A location in space that is represented by a dot and has no dimension'?

a)

Point

b)

Line

c)

Plane

d)

Angle

2.

What is defined as 'One-dimensional display that has arrows on both ends'?

a)

Line

b)

Ray

c)

Segment

d)

Point

3.

What is defined as 'A flat surface made up of points that has two dimensions and extends without end, and is represented by a shape that looks like a floor or wall'?

a)

Plane

b)

Line

c)

Point

d)

Ray

4.

What do you call points that lie on the same line?

a)

Collinear points

b)

Concurrent points

c)

Coplanar points

d)

Non-collinear points

5.

What do you call points that lie in the same plane?

a)

Coplanar points

b)

Collinear points

c)

Concurrent points

d)

Non-coplanar points

6.

What is a part of a line that consists of two endpoints and all points on the line between the endpoints?

a)

Line segment

b)

Ray

c)

Point

d)

Line

7.

What are points that represent the ends of a line segment or ray called?

a)

Endpoints

b)

Vertices

c)

Midpoints

d)

Intersections

8.

What is a part of a line that consists of an endpoint and all points on the line on one side of the endpoint?

a)

Ray

b)

Segment

c)

Angle

d)

Vertex

9.

What do you call two rays that have the same endpoint and form a line?

a)

Opposite rays

b)

Adjacent rays

c)

Parallel rays

d)

Perpendicular rays

10.

What is the set of points that two or more geometric figures have in common called?

a)

Intersection

b)

Union

c)

Vertex

d)

Segment

11.

What is a rule that is accepted without proof called?

a)

Postulate or Axiom

b)

Theorem

c)

Corollary

d)

Hypothesis

12.

What is a real number that corresponds to a point on a line called?

a)

Coordinate

b)

Vector

c)

Matrix

d)

Segment

13.

What do you call line segments that have the same length?

a)

Congruent segments

b)

Parallel segments

c)

Intersecting segments

d)

Perpendicular segments

14.

What is the point that divides a segment into two congruent segments called?

a)

Midpoint

b)

Endpoint

c)

Vertex

d)

Bisector

15.

What is a point, ray, line, line segment, or plane that intersects the segment at its midpoint called?

a)

Segment bisector

b)

Perpendicular bisector

c)

Midpoint connector

d)

Angle bisector

16.

An angle that has a measure between 0 and 90 degrees is called a _________.

a)

Acute angle

b)

Obtuse angle

c)

Right angle

d)

Reflex angle

17.

An angle that has a measure of 90 degrees is called a _________.

a)

Right angle

b)

Acute angle

c)

Obtuse angle

d)

Reflex angle

18.

An angle that has a measure greater than 90 degrees and less than 180 degrees is called a _________.

a)

Obtuse angle

b)

Acute angle

c)

Right angle

d)

Reflex angle

19.

A set of points consisting of two different rays that have the same endpoint is called a(n) _________.

a)

Angle

b)

Line Segment

c)

Circle

d)

Polygon

20.

The angle formed by the legs of an isosceles triangle is called a _________.

a)

Vertex

b)

Base

c)

Right

d)

Obtuse

21.

Two angles that have the same measure are called _________

a)

Congruent angles

b)

Adjacent angles

c)

Complementary angles

d)

Supplementary angles

22.

A ray that divides an angle into two congruent angles is called a(n) _________.

a)

Angle bisector

b)

Perpendicular bisector

c)

Median

d)

Altitude

23.

Two angles that share a common vertex and side, but have no common interior points are called _________.

a)

Adjacent angles

b)

Vertical angles

c)

Complementary angles

d)

Supplementary angles

24.

Two angles whose measures have a sum of 90 degrees are called _________

a)

Complementary angles

b)

Supplementary angles

c)

Vertical angles

d)

Adjacent angles

25.

Two angles whose measures have a sum of 180 degrees are called _________.

a)

Supplementary angles

b)

Complementary angles

c)

Vertical angles

d)

Adjacent angles

26.

Two adjacent angles whose noncommon sides are opposite rays are called a _________.

a)

Linear pair

b)

Vertical angles

c)

Complementary angles

d)

Supplementary angles

27.

Two angles whose sides form two pairs of opposite rays are called _________.

a)

Vertical angles

b)

Adjacent angles

c)

Complementary angles

d)

Supplementary angles

28.

A logical statement that has a hypothesis and a conclusion is called a _________.

a)

Conditional statement

b)

Biconditional statement

c)

Converse statement

d)

Inverse statement

29.

The opposite of a statement is called its _________.

a)

Negation

b)

Affirmation

c)

Conjunction

d)

Implication

30.

The statement formed by exchanging the hypothesis and conclusion of a conditional statement is called its _________.

a)

Converse

b)

Inverse

c)

Contrapositive

d)

Biconditional

31.

The statement formed by negating both the hypothesis and conclusion of a conditional statement is called its _________.

a)

Inverse

b)

Converse

c)

Contrapositive

d)

Biconditional

32.

Fill in the blank: The statement formed by negating both the hypothesis and conclusion of the converse of a conditional statement is called _________.

a)

Contrapositive

b)

Inverse

c)

Converse

d)

Biconditional

33.

Fill in the blank: The lines that intersect to form a right angle are called _________.

a)

Perpendicular Lines

b)

Parallel Lines

c)

Intersecting Lines

d)

Skew Lines

34.

Fill in the blank: A statement that contains the phrase “if and only if” is called a _________.

a)

Biconditional statement

b)

Conditional statement

c)

Converse statement

d)

Inverse statement

35.

Fill in the blank: An unproven statement that is based on observations is called a _________.

a)

Conjecture

b)

Theorem

c)

Postulate

d)

Axiom

36.

Fill in the blank: A process that includes looking for patterns and making conjectures is called _________.

a)

Inductive reasoning

b)

Deductive reasoning

c)

Hypothesis testing

d)

Statistical analysis

37.

Fill in the blank: A specific case for which a conjecture is false is called a _________

a)

Counterexample

b)

Hypothesis

c)

Proof

d)

Theorem

38.

Fill in the blank: A process that uses facts, definitions, accepted properties, and the laws of logic to form a logical argument is called _________.

a)

Deductive reasoning

b)

Inductive reasoning

c)

Hypothesis testing

d)

Empirical observation

39.

Fill in the blank: A logical argument that uses deductive reasoning to show that a statement is true is called a _________.

a)

Proof

b)

Hypothesis

c)

Conjecture

d)

Assumption

40.

Fill in the blank: A type of proof that has numbered statements and corresponding reasons that show an argument in a logical order is called a _________

a)

Two-column proof

b)

Paragraph proof

c)

Indirect proof

d)

Flowchart proof

41.

Fill in the blank: A statement that can be proven is called a _________.

a)

Theorem

b)

Hypothesis

c)

Conjecture

d)

Axiom

42.

Fill in the blank: Coplanar lines that do not intersect are called _________.

a)

Parallel lines

b)

Perpendicular lines

c)

Skew lines

d)

Concurrent lines

43.

Fill in the blank: Lines that do not intersect and are not coplanar are called _________.

a)

Skew lines

b)

Parallel lines

c)

Intersecting lines

d)

Perpendicular lines

44.

Fill in the blank: Planes that do not intersect are called _________.

a)

Parallel planes

b)

Perpendicular planes

c)

Skew planes

d)

Intersecting planes

45.

Fill in the blank: A line that intersects two or more coplanar lines at different points is called a _________

a)

Transversal

b)

Parallel line

c)

Perpendicular bisector

d)

Ray

46.

Fill in the blank: Two angles that are formed by two lines and a transversal that are in corresponding positions are called _________.

a)

Corresponding angles

b)

Alternate interior angles

c)

Vertical angles

d)

Supplementary angles

47.

Fill in the blank: Two angles that are formed by two lines and a transversal, that are between the two lines and on opposite sides of the transversal are called _________.

a)

Alternate interior angles

b)

Corresponding angles

c)

Vertical angles

d)

Adjacent angles

48.

Two angles that are formed by two lines and a transversal that are outside the two lines and on opposite sides of the transversal are called _________?

a)

Alternate exterior angles

b)

Corresponding angles

c)

Alternate interior angles

d)

Vertical angles

49.

Two angles that are formed by two lines and a transversal that lie between the two lines and on the same side of the transversal are called _________?

a)

Consecutive interior angles

b)

Alternate interior angles

c)

Corresponding angles

d)

Vertical angles

50.

Fill in the blank: A ray, line, line segment, or plane that is perpendicular to a segment at its midpoint is called a _________.

a)

Perpendicular bisector

b)

Median

c)

Altitude

d)

Angle bisector

51.

Fill in the blank: A function that moves or changes a figure in some way to produce a new figure is called a _________.

a)

Transformation

b)

Equation

c)

Variable

d)

Expression

52.

Fill in the blank: A figure that results from the transformation of a geometric figure is called an _________

a)

Image

b)

Vertex

c)

Angle

d)

Segment

53.

Fill in the blank: The original figure before a transformation is called a _________

a)

Preimage

b)

Image

c)

Translation

d)

Reflection

54.

Fill in the blank: A transformation that moves every point of a figure the same distance in the same direction is called a _________.

a)

Translation

b)

Rotation

c)

Reflection

d)

Dilation

55.

Fill in the blank: A transformation that preserves length and angle measure is called _________.

a)

Rigid motion

b)

Dilation

c)

Reflection

d)

Translation

56.

Fill in the blank: The combination of two or more transformations to form a single transformation is called _________.

a)

Composition of transformations

b)

Decomposition of transformations

c)

Reflection of transformations

d)

Translation of transformations

57.

Fill in the blank: A transformation that uses a line like a mirror to reflect a figure is called _________.

a)

Reflection

b)

Rotation

c)

Translation

d)

Dilation

58.

Fill in the blank: A line that acts as a mirror for reflection is called a _________.

a)

Line of reflection

b)

Axis of rotation

c)

Point of symmetry

d)

Center of dilation

59.

Fill in the blank: A transformation in which a figure is turned about a fixed point is called a _________.

a)

Rotation

b)

Translation

c)

Reflection

d)

Dilation

60.

Fill in the blank: The fixed point in a rotation is called the _________.

a)

Center of rotation

b)

Axis of symmetry

c)

Vertex

d)

Point of inflection

61.

Fill in the blank: The angle that is formed by rays drawn from the center of rotation to a point and its image is called the _________.

a)

angle of rotation

b)

angle of incidence

c)

angle of reflection

d)

angle of elevation

62.

Fill in the blank: Geometric figures that have the same size and shape are called __________.

a)

congruent figures

b)

similar figures

c)

parallel figures

d)

regular figures

63.

Fill in the blank: A transformation that preserves length and angle measure is called a __________.

a)

congruence transformation

b)

dilation

c)

translation

d)

reflection

64.

A transformation in which a figure is enlarged or reduced with respect to a fixed point is called __________.

a)

dilation

b)

translation

c)

rotation

d)

reflection

65.

Fill in the blank: The fixed point in a dilation is called the __________.

a)

center of dilation

b)

vertex

c)

focus

d)

origin

66.

Fill in the blank: The ratio of the lengths of the corresponding sides of the image and the preimage of a dilation is called the __________.

a)

scale factor

b)

midpoint

c)

perimeter

d)

area

67.

Fill in the blank: A dilation in which the scale factor is greater than 1 is called __________.

a)

enlargement

b)

reduction

c)

reflection

d)

translation

68.

Fill in the blank: A dilation in which the scale factor is greater than 0 and less than 1 is called __________.

a)

reduction

b)

enlargement

c)

translation

d)

rotation

69.

Fill in the blank: A dilation or composition of rigid motions and dilations is called a __________.

a)

similarity transformation

b)

reflection transformation

c)

translation transformation

d)

rotation transformation

70.

Fill in the blank: Geometric figures that have the same shape but not necessarily the same size are called __________.

a)

similar figures

b)

congruent figures

c)

parallel figures

d)

regular figures

71.

Fill in the blank: Angles of a polygon are called __________.

a)

interior angles

b)

exterior angles

c)

right angles

d)

vertical angles

72.

Fill in the blank: Angles that form linear pairs with the interior angles of a polygon are called __________.

a)

exterior angles

b)

vertical angles

c)

alternate angles

d)

corresponding angles

73.

Fill in the blank: A statement that can be proved easily using the theorem is called a __________.

a)

corollary to a theorem

b)

lemma

c)

axiom

d)

postulate

74.

Fill in the blank: A pair of sides or angles that have the same relative position in two congruent figures are called __________.

a)

corresponding parts

b)

opposite parts

c)

adjacent parts

d)

vertical parts

75.

Fill in the blank: The two congruent sides of an isosceles triangle are called __________.

a)

legs of an isosceles triangle

b)

base of an isosceles triangle

c)

altitudes of an isosceles triangle

d)

vertices of an isosceles triangle

76.

What is the angle formed by the legs of an isosceles triangle called?

a)

Vertex angle

b)

Base angle

c)

Right angle

d)

Obtuse angle

77.

What are the two angles adjacent to the base of an isosceles triangle called?

a)

Base angles of an isosceles triangle

b)

Vertex angles of an isosceles triangle

c)

Right angles of an isosceles triangle

d)

Exterior angles of an isosceles triangle

78.

What do you call the sides adjacent to the right angle of a right triangle?

a)

Legs of a right triangle

b)

Hypotenuse

c)

Base and height

d)

Diagonals

79.

What is the side opposite the right angle of a right triangle called?

a)

Hypotenuse

b)

Base

c)

Altitude

d)

Median

80.

A point is equidistant from two figures when it is the same distance from each figure. What is this property called?

a)

Equidistant

b)

Collinear

c)

Concurrent

d)

Coplanar

81.

What is the term for the point of intersection of concurrent lines, rays, or segments?

a)

Point of concurrency

b)

Vertex

c)

Midpoint

d)

Centroid

82.

What is the point of concurrency of the three perpendicular bisectors of a triangle called?

a)

Circumcenter

b)

Incenter

c)

Centroid

d)

Orthocenter

83.

What is the point of concurrency of the angle bisectors of a triangle called?

a)

Incenter

b)

Centroid

c)

Circumcenter

d)

Orthocenter

84.

What do you call three or more lines, rays, or segments that intersect in the same point?

a)

Concurrent

b)

Parallel

c)

Perpendicular

d)

Collinear