Angle Review

Front

What are complementary angles?

Back

Complementary angles are two angles whose measures add up to 90 degrees.

Front

If m∠K = (3x + 3)° and m∠L = (10x - 4)°, what is the equation to find x?

Back

Set up the equation: (3x + 3) + (10x - 4) = 90.

Front

What is the measure of angle K if m∠K = 24° and m∠L = 66°?

Back

m∠K = 24°.

Front

If angle JHG measures 161°, what is the relationship between angles JHG, GHK, and KHJ?

Back

m∠GHK + m∠KHJ = 180° - m∠JHG.

Front

What is the sum of the angles in a triangle?

Back

The sum of the angles in a triangle is always 180 degrees.

Front

If m∠1 = 30°, what can be said about m∠3 if they are corresponding angles?

Back

m∠3 = 30°.

Front

What is the measure of angle ABD if < ABC = 103°?

Back

m∠ABD = 46°.

Front

How do you find the measure of an angle when given its complementary angle?

Back

Subtract the measure of the complementary angle from 90°.

Front

What is the definition of vertical angles?

Back

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

Front

If two angles are supplementary, what is their sum?

Back

The sum of supplementary angles is 180 degrees.