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

If two angles are adjacent and one measures 45°, what is the measure of the other angle if they form a straight line?

Back

The other angle measures 135° because adjacent angles on a straight line add up to 180°.

Front

What is the sum of the measures of two adjacent angles?

Back

The sum of the measures of two adjacent angles can be 180° if they form a straight line, or less than 180° if they do not.

Front

If angle A measures 30° and is adjacent to angle B, what is the measure of angle B if they form a straight line?

Back

Angle B measures 150° because 180° - 30° = 150°.

Front

What is the measure of angle C if angle D is 90° and they are adjacent?

Back

Angle C can be any angle that, when added to 90°, does not exceed 180°.

Front

If angle E measures 25° and is adjacent to angle F, what is the measure of angle F if they form a straight line?

Back

Angle F measures 155° because 180° - 25° = 155°.

Front

What is the relationship between adjacent angles?

Back

Adjacent angles can be complementary (sum to 90°), supplementary (sum to 180°), or have no specific relationship.

Front

If angle G measures 60° and is adjacent to angle H, what is the maximum measure of angle H?

Back

Angle H can measure up to 120° if they are supplementary.

Front

What do you call two angles that add up to 90°?

Back

They are called complementary angles.

Front

What do you call two angles that add up to 180°?

Back

They are called supplementary angles.