Test 1

Question 1

a statement that defines a mathematical object

Answer 1

definition in geometry

Question 2

a basic mathematical term that is not defined using other mathematical terms

Answer 2

undefined term

Question 3

names a location and has no size

Answer 3

point (named with capital letter)

Question 4

a straight path that has no thickness and extends forever

Answer 4

line

Question 5

any set of points that lie on the same line

Answer 5

collinear points

Question 6

points that do not lie on the same line

Answer 6

non-collinear points

Question 7

a flat surface that has no thickness and extends forever

Answer 7

plane

Question 8

lines that lie in the same plane

Answer 8

coplanar

Question 9

a plane that does not contain lines or points

Answer 9

non-coplanar

Question 10

the point or set of points in which two figures meet

Answer 10

intersection

Question 11

part of a line consisting of two endpoints and all points between them

Answer 11

line segment

Question 12

shows that two segments are congruent

Answer 12

congruence statement

Question 13

placed on diagrams, objects, and shapes to show that lengths are congruent

Answer 13

tick marks

Question 14

a statement that is accepted as true without proof

Answer 14

postulate

Question 15

states that (line seg.) AB is congruent to (line seg.) AB

Answer 15

reflexive property of congruence

Question 16

states that if (line seg.) AB is congruent to (line seg.) CD, the CD is congruent to AB

Answer 16

symmetric property of congruence

Question 17

states that if (line seg.) AB is congruent to (line seg.) CD, and CD is congruent to EF, then AB is congruent to EF

Answer 17

transitive property of congruence

Question 18

the measure of the segment containing two points

Answer 18

distance

Question 19

the point that divides the segment into two congruent parts

Answer 19

midpoint

Question 20

a part of a line that starts at an endpoint and extends infinitely in one direction

Answer 20

ray

Question 21

a figure formed by two rays with a common endpoint

Answer 21

angle

Question 22

the common endpoint of an angle

Answer 22

vertex

Question 23

a tool used to measure angles

Answer 23

protractor

Question 24

what angle measurements are measured in

Answer 24

degrees

Question 25

angles that are less than 90 degrees

Answer 25

acute

Question 26

angles that equal 90 degrees

Answer 26

right

Question 27

angles that are over 90 degrees and less than 180

Answer 27

obtuse

Question 28

angles that are 180 degrees

Answer 28

straight

Question 29

lines that intersect to form a right angle

Answer 29

perpendicular

Question 30

coplanar lines that do not intersect

Answer 30

parallel

Question 31

lines that are not in the same plane and do not intersect

Answer 31

skew lines

Question 32

two angles whose sum of its measures is 90 degrees

Answer 32

complementary

Question 33

two angles whose sum of its measures is 180 degrees

Answer 33

supplementary

Question 34

two angles in the same plane that share a side and a vertex, but no interior angles

Answer 34

adjacent angles

Question 35

adjacent angles whose non-common sides are opposite rays

Answer 35

linear pair

Question 36

the process of reasoning that a rule or statement is true because several specific cases are true

Answer 36

inductive reasoning

Question 37

an example that does not support the conjecture

Answer 37

counterexample

Question 38

a statement that is believed to be true. if it is proven it becomes a theorem

Answer 38

conjecture

Question 39

mathematical relationship expressed with symbols

Answer 39

formula

Question 40

the sum of the side lengths of a closed geometric figure. The distance around a figure

Answer 40

perimeter

Question 41

the size of the region bounded by the figure

Answer 41

area