LEVEL 2 | Complementary, Supplementary, and Vertical Angles

Front

What are Vertical Angles?

Back

Vertical angles are the angles opposite each other when two lines intersect. They are always congruent (equal in measure).

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

What is the complement angle to 45°?

Back

The complement angle to 45° is 45°.

Front

If one angle measures 30°, what is the measure of its supplementary angle?

Back

The supplementary angle is 150°.

Front

What is the measure of vertical angles when one angle is 92°?

Back

The vertical angle is also 92°.

Front

If two angles are supplementary and one measures 102°, what is the measure of the other angle?

Back

The other angle measures 78°.

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. They are equal when the lines are parallel.

Front

What are Corresponding Angles?

Back

Corresponding angles are pairs of angles that are in the same position on two parallel lines in relation to a transversal. They are equal when the lines are parallel.

Front

What is the sum of the measures of two complementary angles?

Back

The sum is always 90 degrees.