Math Vocabulary 1.2-1.5

Question 1

Point

Answer 1

A specific location in space

Question 2

Line

Answer 2

Straight path that extends in two opposite directions without end

Question 3

Plane

Answer 3

Flat surface that extends without an end

Question 4

Collinear Points

Answer 4

points that lie on the same line

Question 5

Coplanar

Answer 5

points that lie on the same plane

Question 6

Segment

Answer 6

Part of a line that consists of 2 endpoints and all the points between them

Question 7

Ray

Answer 7

Part of a line that consists of one Endpoint and all the points of the line on one side of the endpoint

Question 8

Opposite Rays

Answer 8

Two rays that share the same endpoint and form a line

Question 9

Midpoint

Answer 9

point that divides a segment into 2 congruent segments

Question 10

Segment Bisector

Answer 10

a segment, ray, line or plane that intersects a segment into two congruent segments

Question 11

Acute angle

Answer 11

an angle with a measure that is less than 90

Question 12

Obtuse angle

Answer 12

angle with a measure that is between 90 and 180

Question 13

Right angle

Answer 13

angle with a measure that is equal to 90

Question 14

Straight angle

Answer 14

angle with a measure that is 180

Question 15

Adjacent angles

Answer 15

2 angles with a common side, a common vertex, and no common interior points

Question 16

Vertical angles

Answer 16

2 angles whose sides are opposite rays

Question 17

Complementary angles

Answer 17

2 angles whose measures have a sum of 90 degrees

Question 18

Supplementary angles

Answer 18

2 angles whose measures have a sum of 180 degrees

Question 19

linear pair

Answer 19

pair of adjacent angles that form a straight angle

Question 20

angle bisector

Answer 20

Ray that divides an angle into two congruent angles