Angles Flashcard

Front

What are complementary angles?

Back

Complementary angles are two angles that add up to 90 degrees.

Front

What are supplementary angles?

Back

Supplementary angles are two angles that add up to 180 degrees.

Front

If ∠A and ∠B are supplementary and ∠A measures 120°, what is the measure of ∠B?

Back

60°

Front

If m∠1 = 30°, what is m∠3 if they are equal?

Back

m∠3 = 30°.

Front

If ∠H and ∠J are complementary and ∠H measures 35°, what is the measure of ∠J?

Back

55°.

Front

What is the sum of angles in a triangle?

Back

The sum of angles in a triangle is always 180 degrees.

Front

What is the measure of a right angle?

Back

A right angle measures 90 degrees.

Front

What is the measure of a straight angle?

Back

A straight angle measures 180 degrees.

Front

If two angles are equal and one measures 45°, what are the measures of both angles?

Back

Both angles measure 45°.

Front

What do you call angles that add up to 180 degrees?

Back

Supplementary angles.