Adjacent Angles

Front

What are adjacent angles?

Back

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

Front

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

Back

Angle B measures 150 degrees because adjacent angles on a straight line sum up to 180 degrees.

Front

What is the sum of two adjacent angles?

Back

The sum of two adjacent angles can vary; they can add up to any value depending on their measures.

Front

If angle X is 50 degrees and angle Y is adjacent to angle X, what is the measure of angle Y if they form a right angle?

Back

Angle Y measures 40 degrees because adjacent angles on a right angle sum up to 90 degrees.

Front

What is a right angle?

Back

A right angle is an angle that measures exactly 90 degrees.

Front

If angle A is 74 degrees and angle B is adjacent to angle A, what is the measure of angle B if they form a straight angle?

Back

Angle B measures 106 degrees because adjacent angles on a straight angle sum up to 180 degrees.

Front

What is the relationship between complementary angles?

Back

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

Front

What is the relationship between supplementary angles?

Back

Supplementary angles are two angles whose measures add up to 180 degrees.

Front

If angle Z is a right angle, what is the measure of angle X if angle Z and angle X are adjacent and form a straight line?

Back

Angle X measures 90 degrees because it is adjacent to a right angle.

Front

What is the measure of angle B if angle A is 110 degrees and they are adjacent?

Back

Angle B measures 70 degrees because adjacent angles on a straight line sum up to 180 degrees.