Angle Pairs Practice

Front

What are complementary angles?

Back

Two angles whose measures add up to 90°.

Front

If ∠1 is 60°, what is m∠2 if ∠1 and ∠2 are complementary?

Back

m∠2 = 30°.

Front

What angles are always congruent?

Back

Vertical Angles.

Front

Define vertical angles.

Back

Angles that are opposite each other when two lines intersect; they are always equal.

Front

What is a linear pair of angles?

Back

A pair of adjacent angles whose non-common sides form a straight line.

Front

If two angles are supplementary, what is the sum of their measures?

Back

180°.

Front

What are adjacent angles?

Back

Two angles that share a common vertex and a common side, but do not overlap.

Front

What is the equation to solve for x if (x + 5) + (5x + 25) = 90?

Back

This equation helps find the value of x in angle problems.

Front

What is the relationship between supplementary angles?

Back

Their measures add up to 180°.

Front

If two angles are vertical angles, what can be said about their measures?

Back

They are equal.