Angle Pairs (WITH Algebra)

Front

What are complementary angles?

Back

Two angles that add up to 90 degrees.

Front

What are supplementary angles?

Back

Two angles that add up to 180 degrees.

Front

What is the relationship between vertical angles?

Back

Vertical angles are equal.

Front

What is the formula for finding the measure of an angle in a linear pair?

Back

If two angles form a linear pair, then they are supplementary: A + B = 180°.

Front

How do you solve for x in the equation 2x + 10 = 50?

Back

x = 20.

Front

What is the definition of adjacent angles?

Back

Angles that share a common side and vertex but do not overlap.

Front

If angle A and angle B are complementary and angle A measures 30 degrees, what is the measure of angle B?

Back

Angle B = 60 degrees.

Front

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

Back

The sum is always 180 degrees.

Front

If two angles are supplementary and one angle measures 40 degrees, what is the measure of the other angle?

Back

The other angle measures 140 degrees.

Front

What is the definition of a linear pair of angles?

Back

A pair of adjacent angles formed when two lines intersect.