Angles Vocabulary

Front

Angles that have a measure less than 90 degrees are called _____ ______.

Back

acute angles

Front

Angles that are exactly 90 degrees are called _____ ______.

Back

right angles

Front

What type of angle is shown? (If the angle is 90 degrees)

Back

right

Front

Classify this angle. (If the angle is less than 90 degrees)

Back

acute

Front

Which type of angle is pictured? (If the angle is less than 90 degrees)

Back

acute

Front

Angles that measure more than 90 degrees but less than 180 degrees are called _____ ______.

Back

obtuse angles

Front

Angles that measure exactly 180 degrees are called _____ ______.

Back

straight angles

Front

What is the sum of angles in a triangle?

Back

180 degrees

Front

What type of angle is greater than 180 degrees?

Back

reflex angle

Front

What do you call two angles that add up to 90 degrees?

Back

complementary angles