Angle pairs

Front

What are supplementary angles?

Back

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

Front

What are complementary angles?

Back

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

Front

If angle QRT and angle TRS are supplementary and angle QRT measures 65 degrees, what is the measure of angle TRS?

Back

Angle TRS measures 115 degrees.

Front

What is an angle bisector?

Back

An angle bisector is a line or ray that divides an angle into two equal parts.

Front

What is a perpendicular bisector?

Back

A perpendicular bisector is a line that divides a segment into two equal parts at a 90-degree angle.

Front

What is a linear pair of angles?

Back

A linear pair of angles are two adjacent angles that form a straight line, adding 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

If angle A and angle B are complementary and angle A measures 30 degrees, what is the measure of angle B?

Back

Angle B measures 60 degrees.

Front

What is the relationship between adjacent angles?

Back

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

Front

If angle 7 and angle 8 are a linear pair, what can be said about their measures?

Back

The measures of angle 7 and angle 8 add up to 180 degrees.