1.2 Define and Measure Angles

Question 1

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

Answer 1

Ray

Question 2

formed by two line segments or rays that share the same endpoint

Answer 2

Angle

Question 3

a ( ) of an angle is the common endpoint of the two rays that form the angle

Answer 3

Vertex

Question 4

( Angles ) are two angles in the same plane with a common vertex and a common side, but no common interior points

Answer 4

Adjacent Angles

Question 5

an angle that measures in between 0 and 90 degrees

Answer 5

Acute

Question 6

an angle that is exactly 90 degrees

Answer 6

Right

Question 7

an angle between 90 and 180 degrees

Answer 7

Obtuse

Question 8

a ( ) line is 180 degrees

Answer 8

Straight

Question 9

the measure of the reflex angle of a given acute, right or obtuse angle angle will be greater than 180 degrees and less than 360 degrees

Answer 9

Refelx

Question 10

The ( ) of an angle bisects the angle

Answer 10

Angle Bisector

Question 11

two angles are ( ) if the sum of their angle measures is equal to 180 degrees

Answer 11

Supplementary

Question 12

two angle are ( ) if the sum of their angle measures equal to 90 degrees

Answer 12

Complementary