8R Geometry Test Review

Front

What type of angle is 90°?

Back

Right Angle

Front

What is the complement angle to 30°?

Back

60°

Front

What are supplementary angles?

Back

Two angles that add up to 180°.

Front

Find the missing angle if one angle is 160°.

Back

20°

Front

What is an acute angle?

Back

An angle that is less than 90°.

Front

What is an obtuse angle?

Back

An angle that is greater than 90° but less than 180°.

Front

What is a straight angle?

Back

An angle that measures exactly 180°.

Front

If two angles are complementary, what is the sum of their measures?

Back

90°.

Front

If angle A is 113°, what is the measure of its supplementary angle?

Back

67°.

Front

Solve for x: 2x + 10 = 80.

Back

x = 35.