Angle Bisectors #1

Front

What is an angle bisector?

Back

An angle bisector is a line or ray that divides an angle into two equal parts.

Front

If angle ABC measures 34°, what is the measure of angle CBD?

Back

34°

Front

If angle ABD measures 74°, what is the measure of angle CBD?

Back

37°

Front

Solve for x: 2x + 4 = 10.

Back

x = 3

Front

Find the measure of ∠ABD if x = 3 in the equation 3x = 27.

Back

∠ABD = 27°

Front

What is the relationship between angles formed by an angle bisector?

Back

The angles formed by an angle bisector are equal.

Front

If angle ABC is bisected, what is the measure of each angle if angle ABC = 80°?

Back

Each angle measures 40°.

Front

What is the formula to find the measure of an angle when given its bisector?

Back

If angle ABC is bisected, then measure of angle ABD = measure of angle CBD = 1/2 * measure of angle ABC.

Front

If angle ABC = 90°, what are the measures of angles ABD and CBD?

Back

Each angle measures 45°.

Front

What is the measure of angle CBD if angle ABC = 50°?

Back

25°