Review of Angle Equations

Front

What are complementary angles?

Back

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

Front

What are supplementary angles?

Back

Supplementary angles are two angles whose measures 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

What are adjacent angles?

Back

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

Front

If angle A is 53°, what is the measure of its complementary angle?

Back

The complementary angle is 37° (90° - 53°).

Front

If angle B is 67°, what is the measure of its supplementary angle?

Back

The supplementary angle is 113° (180° - 67°).

Front

Find X if angle X and angle 1 are vertical angles and angle 1 is 177°.

Back

X = 177°.

Front

Find the missing angle if angle A is 28° and angle B is its complementary angle.

Back

The missing angle is 62° (90° - 28°).

Front

What is an example of a pair of complementary angles?

Back

81° and 9° are complementary angles.

Front

What is an example of a pair of supplementary angles?

Back

110° and 70° are supplementary angles.