Front

Solve: 10x + 9 = 4x - 9

Back

x = -3

Front

Find the missing angle: 60, 70, 50, 140

Back

50

Front

∠1 and ∠3 can best be described as -

Back

vertical angles

Front

Solve: 4k + 24 = 6k -10

Back

k = 17

Front

If the measure of ∠2 is 83°, what is the measure of ∠3?

Back

97°

Front

What are complementary angles?

Back

Two angles that add up to 90°.

Front

What are supplementary angles?

Back

Two angles that add up to 180°.

Front

What are vertical angles?

Back

Angles opposite each other when two lines cross; they are equal.

Front

What are adjacent angles?

Back

Angles that share a common side and vertex.

Front

Solve: 3x + 5 = 20

Back

x = 5