Angle Addition Postulate

Front

What is the Angle Addition Postulate?

Back

The Angle Addition Postulate states that if point B is in the interior of angle AOC, then the measure of angle AOB plus the measure of angle BOC equals the measure of angle AOC.

Front

If angle A measures 30 degrees and angle B measures 50 degrees, what is the measure of angle C if angle C is the sum of angles A and B?

Back

Angle C measures 80 degrees.

Front

What is the measure of an angle if it is complementary to a 70-degree angle?

Back

The measure of the angle is 20 degrees.

Front

What is the measure of an angle if it is supplementary to a 110-degree angle?

Back

The measure of the angle is 70 degrees.

Front

If angle 1 measures 45 degrees and angle 2 measures 45 degrees, what is the measure of angle 3 if angle 1 and angle 2 are adjacent and form a straight line with angle 3?

Back

Angle 3 measures 90 degrees.

Front

What is the definition of adjacent angles?

Back

Adjacent angles are two angles that share a common vertex and a common side but do not overlap.

Front

If angle 1 measures 60 degrees and angle 2 measures 30 degrees, what is the measure of angle 3 if angle 1 and angle 2 are part of a triangle?

Back

Angle 3 measures 90 degrees.

Front

What is the relationship between the angles in a triangle?

Back

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

Front

If angle A measures 35 degrees and angle B measures 65 degrees, what is the measure of angle C in triangle ABC?

Back

Angle C measures 80 degrees.

Front

What is the definition of vertical angles?

Back

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