Angle Relationships

Front

What is the sum of the interior angles of a triangle?

Back

The sum of the interior angles of a triangle is always 180 degrees.

Front

If one angle of a triangle measures 60 degrees, what is the measure of the third angle if the second angle measures 60 degrees?

Back

The measure of the third angle is 60 degrees.

Front

What are alternate interior angles?

Back

Alternate interior angles are pairs of angles that are on opposite sides of a transversal and inside the two lines.

Front

If m∠3 = 83°, what is the measure of m∠5 if m∠5 is equal to m∠3?

Back

m∠5 = 83°.

Front

If m∠3 = 83°, what is the measure of m∠4 if m∠4 and m∠3 are supplementary?

Back

m∠4 = 97°.

Front

What is the definition of complementary angles?

Back

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

Front

What is the definition of supplementary angles?

Back

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

Front

Which angle is an alternate exterior angle to ∠8?

Back

∠4.

Front

What is the relationship between vertical angles?

Back

Vertical angles are equal to each other.

Front

If two parallel lines are cut by a transversal, what can be said about the corresponding angles?

Back

Corresponding angles are equal.