Angles and Lines - 7th

Front

What is a complementary angle?

Back

An angle that, when added to another angle, equals 90 degrees.

Front

What is the measure of an angle that is complementary to a 65° angle?

Back

25°

Front

What type of angle is larger than 90 degrees?

Back

Obtuse angle.

Front

What type of angle is exactly 90 degrees?

Back

Right angle.

Front

What type of lines create right angles?

Back

Perpendicular lines.

Front

What are parallel lines?

Back

Lines that never intersect and are always the same distance apart.

Front

What are intersecting lines?

Back

Lines that cross each other at one point.

Front

What is an acute angle?

Back

An angle that is less than 90 degrees.

Front

What is a straight angle?

Back

An angle that measures exactly 180 degrees.

Front

What is the sum of the angles in a triangle?

Back

180 degrees.