Quiz about Geometry Midterm Vocab Review (U1-5)

Question 1

angle less than 90 degrees

Accepted Answer

acute

Answer

obtuse

Answer

straight

Answer

right

Question 2

angles that are next to each other

Accepted Answer

adjacent

Answer

congruent

Answer

obtuse

Answer

midpoint

Question 3

two rays that share an initial point

Accepted Answer

angle

Answer

line

Answer

line segment

Answer

perpendicular lines

Question 4

splits figure into two congruent parts

Accepted Answer

bisector

Answer

ray

Answer

midsegment

Answer

midpoint

Question 5

points that lie on the same line

Accepted Answer

collinear

Answer

line segment

Answer

coplanar

Answer

line

Question 6

figures that have the same measure

Accepted Answer

congruent

Answer

equal

Answer

similar

Answer

twins

Question 7

two angles whose sum is 90 degrees

Accepted Answer

complementary angles

Answer

supplementary angles

Answer

vertical angles

Answer

adjacent angles

Question 8

points that lie on the same plane

Accepted Answer

coplanar

Answer

collinear

Answer

line segment

Answer

line

Question 9

points that end a segment

Accepted Answer

endpoints

Answer

points

Answer

angle

Answer

line

Question 10

equal length

Accepted Answer

equidistant

Answer

equal

Answer

congruent

Answer

right

Question 11

endpoint of a ray

Accepted Answer

initial point

Answer

endpoints

Answer

point

Answer

midpoint

Question 12

two figures that have points in common

Accepted Answer

intersect

Answer

corresponding

Answer

collinear

Answer

coplanar

Question 13

the points that figures have in common

Accepted Answer

intersection

Answer

congruent

Answer

similar

Answer

equal

Question 14

a once dimensional figure and extends infinitely in both directions

Accepted Answer

line

Answer

line segment

Answer

ray

Answer

angle

Question 15

a line that has two endpoints

Accepted Answer

line segment

Answer

ray

Answer

angle

Answer

line

Question 16

adjacent angles whose non-shared sides form a line

Accepted Answer

linear pair

Answer

complementary angles

Answer

supplementary angles

Answer

adjacent angles

Question 17

a point that divides a segment into two equal parts

Accepted Answer

midpoint

Answer

endpoints

Answer

initial point

Answer

point

Question 18

angle greater than 90 degrees and less than 180 degrees

Accepted Answer

obtuse

Answer

acute

Answer

straight

Answer

right

Question 19

rays that share an initial point and go in opposite directions

Accepted Answer

opposite rays

Answer

acute angles

Answer

obtuse angles

Answer

straight angle

Question 20

coplanar lines that do not intersect

Accepted Answer

parallel

Answer

perpendicular

Answer

line

Answer

ray

Question 21

lines that form a 90 degree angle

Accepted Answer

perpendicular

Answer

parallel

Answer

line

Answer

ray

Question 22

splits a segment into two equal parts and makes a 90 degree angle

Accepted Answer

perpendicular bisector

Answer

line

Answer

bisector

Answer

perpendicular lines

Question 23

two dimensional flat surface

Accepted Answer

plane

Answer

midpoint

Answer

angle

Answer

point

Question 24

a small dot with no dimension

Accepted Answer

point

Answer

midpoint

Answer

angle

Answer

plane

Question 25

a line with one endpoint and extends without end in the other direction

Accepted Answer

ray

Answer

line segment

Answer

angle

Answer

line

Question 26

a 90 degree angle

Accepted Answer

right

Answer

acute

Answer

obtuse

Answer

straight

Question 27

a 180 degree angle

Accepted Answer

straight

Answer

acute

Answer

obtuse

Answer

right

Question 28

two angles whose sum is 180 degrees

Accepted Answer

supplementary angles

Answer

complementary angles

Answer

vertical angles

Answer

adjacent angles

Question 29

opposite angles formed by two intersecting lines

Accepted Answer

vertical angles

Answer

complementary angles

Answer

supplementary angles

Answer

adjacent angles

Question 30

two or more transformations to one figure

Accepted Answer

composition

Answer

rotation

Answer

transformation

Answer

symmetry

Question 31

makes image smaller or bigger

Accepted Answer

dilation

Answer

rotation

Answer

reflection

Answer

translation

Question 32

composition of translation and reflection in line parallel to translation direction

Accepted Answer

glide reflection

Answer

translation

Answer

reflection

Answer

rotation

Question 33

transformation that preserves size and shape

Accepted Answer

isometry

Answer

glide reflection

Answer

reflection

Answer

rotation

Question 34

the figure after a transformation

Accepted Answer

image

Answer

preimage

Answer

figure

Answer

quadrilateral

Question 35

the figure before it is transformed

Accepted Answer

preimage

Answer

figure

Answer

image

Answer

quadrilateral

Question 36

when an image is mirrored over a line or point

Accepted Answer

reflection

Answer

dilation

Answer

rotation

Answer

translation

Question 37

transformation that preserves size and shape

Accepted Answer

rigid motion

Answer

glide reflection

Answer

translation

Answer

rotation

Question 38

when an image is turned

Accepted Answer

rotation

Answer

dilation

Answer

reflection

Answer

translation

Question 39

when a rigid motion maps a figure onto itself

Accepted Answer

symmetry

Answer

image

Answer

preimage

Answer

isometry

Question 40

when a figure is moved on a plane

Accepted Answer

transformation

Answer

glide reflection

Answer

translation

Answer

rotation

Question 41

when a figure slides on a plane

Accepted Answer

translation

Answer

dilation

Answer

rotation

Answer

reflection

Question 42

angles formed by a transversal of opposite sides of transversal and outside lines and congruent when lines are parallel

Accepted Answer

alternate exterior angles

Answer

corresponding angles

Answer

alternate interior angles

Answer

consecutive interior angles

Question 43

angles formed by a transversal of opposite sides of transversal and inside lines and congruent when lines are parallel

Accepted Answer

alternate interior angles

Answer

corresponding angles

Answer

alternate exterior angles

Answer

consecutive interior angles

Question 44

angles formed by a transversal of same side of transversal and inside lines and supplementary when lines are parallel

Accepted Answer

consecutive interior angles

Answer

corresponding angles

Answer

alternate exterior angles

Answer

alternate interior angles

Question 45

angles formed by a transversal in same position and congruent when lines are parallel

Accepted Answer

corresponding angles

Answer

alternate exterior angles

Answer

alternate interior angles

Answer

consecutive interior angles

Question 46

a statement that is accepted without proof

Accepted Answer

postulate

Answer

theorem

Answer

proof

Answer

example

Question 47

a logical argument where each true statement is supported with a reason

Accepted Answer

proof

Answer

theorem

Answer

example

Answer

postulate

Question 48

non-coplanar lines that do not intersect

Accepted Answer

skew

Answer

parallel

Answer

perpendicular bisector

Answer

diagonal

Question 49

a statement that is proved

Accepted Answer

theorem

Answer

proof

Answer

example

Answer

postulate

Question 50

a line that intersects two lines at different points

Accepted Answer

angles

Answer

parallel lines

Answer

transversal

Answer

diagonal

Question 51

angles opposite the congruent sides in an isosceles triangle

Accepted Answer

base angles

Answer

interior angle

Answer

exterior angle

Answer

vertex

Question 52

point of concurrency for medians

Accepted Answer

centroid

Answer

circumcenter

Answer

orthocenter

Answer

incenter

Question 53

point of concurrency for perpendicular bisectors

Accepted Answer

circumcenter

Answer

centroid

Answer

orthocenter

Answer

incenter

Question 54

when the vertices of a triangle are on a circle

Accepted Answer

circumscribed

Answer

inscribed

Answer

middle

Answer

inside

Question 55

all angles are congruent

Accepted Answer

equiangular

Answer

equilateral

Answer

regular

Answer

isosceles

Question 56

all sides are congruent

Accepted Answer

equilateral

Answer

isosceles

Answer

scalene

Answer

obtuse

Question 57

angle formed by extending side of a triangle

Accepted Answer

exterior angle

Answer

interior angle

Answer

base angles

Answer

vertex

Question 58

the side in a right triangle opposite the right angle

Accepted Answer

hypotenuse

Answer

leg

Answer

base

Answer

side

Question 59

point of concurrency for angle bisectors

Accepted Answer

incenter

Answer

centroid

Answer

circumcenter

Answer

orthocenter

Question 60

when a circle is inside a triangle and touches the sides of the triangle

Accepted Answer

inscribed

Answer

circumscribed

Answer

middle

Answer

inside

Question 61

angle on the inside of a triangle

Accepted Answer

interior angle

Answer

exterior angle

Answer

base angles

Answer

vertex

Question 62

triangle with two congruent sides

Accepted Answer

isosceles triangle

Answer

scalene triangle

Answer

obtuse triangle

Answer

equilateral triangle

Question 63

the congruent sides in an isosceles triangle or the sides in a right triangle not across from right angle

Accepted Answer

leg

Answer

base

Answer

hypotenuse

Answer

side

Question 64

line that connects a vertex to the midpoint on the opposite side

Accepted Answer

median

Answer

base

Answer

midsegment

Answer

side

Geometry Midterm Vocab Review (U1-5)

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