8.2 Angles related to Intersecting Lines

Front

What is the measure of angle COD if it is given as 65°?

Back

Angle COD measures 65°.

Front

What do parallel lines do?

Back

Parallel lines will never intersect.

Front

If m∠1 = 30°, what is m∠3?

Back

m∠3 = 30°.

Front

If the sum of angles in a straight line is 180°, what is the missing angle if one angle is 160°?

Back

The missing angle is 20°.

Front

What is the best term to describe lines that never meet?

Back

The best term is parallel lines.

Front

What are intersecting lines?

Back

Intersecting lines are lines that cross each other at one point.

Front

What are perpendicular lines?

Back

Perpendicular lines are lines that intersect to form right angles (90°).

Front

What is the sum of angles around a point?

Back

The sum of angles around a point is 360°.

Front

If two angles are complementary, what is their sum?

Back

The sum of complementary angles is 90°.

Front

If two angles are supplementary, what is their sum?

Back

The sum of supplementary angles is 180°.