WorksheetsGeometry S1 Vocabulary
Total questions: 84
Worksheet time: 42mins
What is defined as 'A location in space that is represented by a dot and has no dimension'?
Point
Line
Plane
Angle
What is defined as 'One-dimensional display that has arrows on both ends'?
Line
Ray
Segment
Point
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'?
Plane
Line
Point
Ray
What do you call points that lie on the same line?
Collinear points
Concurrent points
Coplanar points
Non-collinear points
What do you call points that lie in the same plane?
Coplanar points
Collinear points
Concurrent points
Non-coplanar points
What is a part of a line that consists of two endpoints and all points on the line between the endpoints?
Line segment
Ray
Point
Line
What are points that represent the ends of a line segment or ray called?
Endpoints
Vertices
Midpoints
Intersections
What is a part of a line that consists of an endpoint and all points on the line on one side of the endpoint?
Ray
Segment
Angle
Vertex
What do you call two rays that have the same endpoint and form a line?
Opposite rays
Adjacent rays
Parallel rays
Perpendicular rays
What is the set of points that two or more geometric figures have in common called?
Intersection
Union
Vertex
Segment
What is a rule that is accepted without proof called?
Postulate or Axiom
Theorem
Corollary
Hypothesis
What is a real number that corresponds to a point on a line called?
Coordinate
Vector
Matrix
Segment
What do you call line segments that have the same length?
Congruent segments
Parallel segments
Intersecting segments
Perpendicular segments
What is the point that divides a segment into two congruent segments called?
Midpoint
Endpoint
Vertex
Bisector
What is a point, ray, line, line segment, or plane that intersects the segment at its midpoint called?
Segment bisector
Perpendicular bisector
Midpoint connector
Angle bisector
An angle that has a measure between 0 and 90 degrees is called a _________.
Acute angle
Obtuse angle
Right angle
Reflex angle
An angle that has a measure of 90 degrees is called a _________.
Right angle
Acute angle
Obtuse angle
Reflex angle
An angle that has a measure greater than 90 degrees and less than 180 degrees is called a _________.
Obtuse angle
Acute angle
Right angle
Reflex angle
A set of points consisting of two different rays that have the same endpoint is called a(n) _________.
Angle
Line Segment
Circle
Polygon
The angle formed by the legs of an isosceles triangle is called a _________.
Vertex
Base
Right
Obtuse
Two angles that have the same measure are called _________
Congruent angles
Adjacent angles
Complementary angles
Supplementary angles
A ray that divides an angle into two congruent angles is called a(n) _________.
Angle bisector
Perpendicular bisector
Median
Altitude
Two angles that share a common vertex and side, but have no common interior points are called _________.
Adjacent angles
Vertical angles
Complementary angles
Supplementary angles
Two angles whose measures have a sum of 90 degrees are called _________
Complementary angles
Supplementary angles
Vertical angles
Adjacent angles
Two angles whose measures have a sum of 180 degrees are called _________.
Supplementary angles
Complementary angles
Vertical angles
Adjacent angles
Two adjacent angles whose noncommon sides are opposite rays are called a _________.
Linear pair
Vertical angles
Complementary angles
Supplementary angles
Two angles whose sides form two pairs of opposite rays are called _________.
Vertical angles
Adjacent angles
Complementary angles
Supplementary angles
A logical statement that has a hypothesis and a conclusion is called a _________.
Conditional statement
Biconditional statement
Converse statement
Inverse statement
The opposite of a statement is called its _________.
Negation
Affirmation
Conjunction
Implication
The statement formed by exchanging the hypothesis and conclusion of a conditional statement is called its _________.
Converse
Inverse
Contrapositive
Biconditional
The statement formed by negating both the hypothesis and conclusion of a conditional statement is called its _________.
Inverse
Converse
Contrapositive
Biconditional
Fill in the blank: The statement formed by negating both the hypothesis and conclusion of the converse of a conditional statement is called _________.
Contrapositive
Inverse
Converse
Biconditional
Fill in the blank: The lines that intersect to form a right angle are called _________.
Perpendicular Lines
Parallel Lines
Intersecting Lines
Skew Lines
Fill in the blank: A statement that contains the phrase “if and only if” is called a _________.
Biconditional statement
Conditional statement
Converse statement
Inverse statement
Fill in the blank: An unproven statement that is based on observations is called a _________.
Conjecture
Theorem
Postulate
Axiom
Fill in the blank: A process that includes looking for patterns and making conjectures is called _________.
Inductive reasoning
Deductive reasoning
Hypothesis testing
Statistical analysis
Fill in the blank: A specific case for which a conjecture is false is called a _________
Counterexample
Hypothesis
Proof
Theorem
Fill in the blank: A process that uses facts, definitions, accepted properties, and the laws of logic to form a logical argument is called _________.
Deductive reasoning
Inductive reasoning
Hypothesis testing
Empirical observation
Fill in the blank: A logical argument that uses deductive reasoning to show that a statement is true is called a _________.
Proof
Hypothesis
Conjecture
Assumption
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 _________
Two-column proof
Paragraph proof
Indirect proof
Flowchart proof
Fill in the blank: A statement that can be proven is called a _________.
Theorem
Hypothesis
Conjecture
Axiom
Fill in the blank: Coplanar lines that do not intersect are called _________.
Parallel lines
Perpendicular lines
Skew lines
Concurrent lines
Fill in the blank: Lines that do not intersect and are not coplanar are called _________.
Skew lines
Parallel lines
Intersecting lines
Perpendicular lines
Fill in the blank: Planes that do not intersect are called _________.
Parallel planes
Perpendicular planes
Skew planes
Intersecting planes
Fill in the blank: A line that intersects two or more coplanar lines at different points is called a _________
Transversal
Parallel line
Perpendicular bisector
Ray
Fill in the blank: Two angles that are formed by two lines and a transversal that are in corresponding positions are called _________.
Corresponding angles
Alternate interior angles
Vertical angles
Supplementary angles
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 _________.
Alternate interior angles
Corresponding angles
Vertical angles
Adjacent angles
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 _________?
Alternate exterior angles
Corresponding angles
Alternate interior angles
Vertical angles
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 _________?
Consecutive interior angles
Alternate interior angles
Corresponding angles
Vertical angles
Fill in the blank: A ray, line, line segment, or plane that is perpendicular to a segment at its midpoint is called a _________.
Perpendicular bisector
Median
Altitude
Angle bisector
Fill in the blank: A function that moves or changes a figure in some way to produce a new figure is called a _________.
Transformation
Equation
Variable
Expression
Fill in the blank: A figure that results from the transformation of a geometric figure is called an _________
Image
Vertex
Angle
Segment
Fill in the blank: The original figure before a transformation is called a _________
Preimage
Image
Translation
Reflection
Fill in the blank: A transformation that moves every point of a figure the same distance in the same direction is called a _________.
Translation
Rotation
Reflection
Dilation
Fill in the blank: A transformation that preserves length and angle measure is called _________.
Rigid motion
Dilation
Reflection
Translation
Fill in the blank: The combination of two or more transformations to form a single transformation is called _________.
Composition of transformations
Decomposition of transformations
Reflection of transformations
Translation of transformations
Fill in the blank: A transformation that uses a line like a mirror to reflect a figure is called _________.
Reflection
Rotation
Translation
Dilation
Fill in the blank: A line that acts as a mirror for reflection is called a _________.
Line of reflection
Axis of rotation
Point of symmetry
Center of dilation
Fill in the blank: A transformation in which a figure is turned about a fixed point is called a _________.
Rotation
Translation
Reflection
Dilation
Fill in the blank: The fixed point in a rotation is called the _________.
Center of rotation
Axis of symmetry
Vertex
Point of inflection
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 _________.
angle of rotation
angle of incidence
angle of reflection
angle of elevation
Fill in the blank: Geometric figures that have the same size and shape are called __________.
congruent figures
similar figures
parallel figures
regular figures
Fill in the blank: A transformation that preserves length and angle measure is called a __________.
congruence transformation
dilation
translation
reflection
A transformation in which a figure is enlarged or reduced with respect to a fixed point is called __________.
dilation
translation
rotation
reflection
Fill in the blank: The fixed point in a dilation is called the __________.
center of dilation
vertex
focus
origin
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 __________.
scale factor
midpoint
perimeter
area
Fill in the blank: A dilation in which the scale factor is greater than 1 is called __________.
enlargement
reduction
reflection
translation
Fill in the blank: A dilation in which the scale factor is greater than 0 and less than 1 is called __________.
reduction
enlargement
translation
rotation
Fill in the blank: A dilation or composition of rigid motions and dilations is called a __________.
similarity transformation
reflection transformation
translation transformation
rotation transformation
Fill in the blank: Geometric figures that have the same shape but not necessarily the same size are called __________.
similar figures
congruent figures
parallel figures
regular figures
Fill in the blank: Angles of a polygon are called __________.
interior angles
exterior angles
right angles
vertical angles
Fill in the blank: Angles that form linear pairs with the interior angles of a polygon are called __________.
exterior angles
vertical angles
alternate angles
corresponding angles
Fill in the blank: A statement that can be proved easily using the theorem is called a __________.
corollary to a theorem
lemma
axiom
postulate
Fill in the blank: A pair of sides or angles that have the same relative position in two congruent figures are called __________.
corresponding parts
opposite parts
adjacent parts
vertical parts
Fill in the blank: The two congruent sides of an isosceles triangle are called __________.
legs of an isosceles triangle
base of an isosceles triangle
altitudes of an isosceles triangle
vertices of an isosceles triangle
What is the angle formed by the legs of an isosceles triangle called?
Vertex angle
Base angle
Right angle
Obtuse angle
What are the two angles adjacent to the base of an isosceles triangle called?
Base angles of an isosceles triangle
Vertex angles of an isosceles triangle
Right angles of an isosceles triangle
Exterior angles of an isosceles triangle
What do you call the sides adjacent to the right angle of a right triangle?
Legs of a right triangle
Hypotenuse
Base and height
Diagonals
What is the side opposite the right angle of a right triangle called?
Hypotenuse
Base
Altitude
Median
A point is equidistant from two figures when it is the same distance from each figure. What is this property called?
Equidistant
Collinear
Concurrent
Coplanar
What is the term for the point of intersection of concurrent lines, rays, or segments?
Point of concurrency
Vertex
Midpoint
Centroid
What is the point of concurrency of the three perpendicular bisectors of a triangle called?
Circumcenter
Incenter
Centroid
Orthocenter
What is the point of concurrency of the angle bisectors of a triangle called?
Incenter
Centroid
Circumcenter
Orthocenter
What do you call three or more lines, rays, or segments that intersect in the same point?
Concurrent
Parallel
Perpendicular
Collinear
