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 two angles are supplementary, what is their relationship?

Back

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

Front

What are vertical angles?

Back

Vertical angles are the angles opposite each other when two lines intersect. They are always equal.

Front

Back

x = -8.

Front

What is the measure of the third angle in a triangle if two angles measure 30 degrees and 60 degrees?

Back

The measure of the third angle is 90 degrees.

Front

What is the definition of complementary angles?

Back

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

Front

Back

x = 10.

Front

What is the relationship between parallel lines and corresponding angles?

Back

When two parallel lines are cut by a transversal, corresponding angles are equal.

Front

What is the definition of adjacent angles?

Back

Adjacent angles are two angles that share a common side and a common vertex.

Front

Back

x = 5.