Adjacent Angles

Front

What are adjacent angles?

Back

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

Front

What is the sum of the measures of adjacent angles?

Back

The sum of the measures of adjacent angles can vary, but they can be complementary (sum to 90°) or supplementary (sum to 180°).

Front

If one angle measures 123°, what is the measure of its adjacent angle if they are supplementary?

Back

The adjacent angle would measure 57° (180° - 123° = 57°).

Front

What is the measure of ∠BAD if it is given as 123°?

Back

∠BAD measures 123°.

Front

What is the measure of angle A if it is given as 75°?

Back

Angle A measures 75°.

Front

If ∠CAD measures 30°, what is the measure of the adjacent angle if they are supplementary?

Back

The adjacent angle would measure 150° (180° - 30° = 150°).

Front

What is the measure of the missing angle if the known angle is 92° and they are supplementary?

Back

The missing angle measures 88° (180° - 92° = 88°).

Front

If angle A measures 45°, what is the measure of its adjacent angle if they are complementary?

Back

The adjacent angle would measure 45° (90° - 45° = 45°).

Front

What is the measure of angle A if it is given as 45°?

Back

Angle A measures 45°.

Front

What is the relationship between adjacent angles and straight angles?

Back

Adjacent angles can form a straight angle (180°) when their measures add up to 180°.