Identifying Angles Review

Front

What is an angle?

Back

An angle is formed by two rays (sides) that share a common endpoint (vertex).

Front

What is the measure of a right angle?

Back

90 degrees.

Front

What is the measure of a straight angle?

Back

180 degrees.

Front

What is an acute angle?

Back

An acute angle is an angle that measures less than 90 degrees.

Front

What is an obtuse angle?

Back

An obtuse angle is an angle that measures more than 90 degrees but less than 180 degrees.

Front

What are complementary angles?

Back

Complementary angles are two angles whose measures add up to 90 degrees.

Front

What are supplementary angles?

Back

Supplementary angles are two angles whose measures add up to 180 degrees.

Front

If one angle measures 70 degrees, what is the measure of its complementary angle?

Back

20 degrees.

Front

If one angle measures 110 degrees, what is the measure of its supplementary angle?

Back

70 degrees.

Front

What is a full rotation in degrees?

Back

360 degrees.