Lines and Angles

Front

What is a point?

Back

A point is a specific location in space that has no size or dimension.

Front

What do perpendicular lines do?

Back

Perpendicular lines intersect to form right angles.

Front

What is an obtuse angle?

Back

An obtuse angle is an angle that measures more than 90 degrees.

Front

What is a right angle?

Back

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

Front

What are intersecting lines?

Back

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

Front

What are parallel lines?

Back

Parallel lines are lines that never intersect and are always the same distance apart.

Front

What is an acute angle?

Back

An acute angle is an angle that measures less than 90 degrees.

Front

How do you identify a right angle?

Back

A right angle can be identified by its square corner, measuring exactly 90 degrees.

Front

What is the sum of angles in a triangle?

Back

The sum of angles in a triangle is always 180 degrees.

Front

What is a line segment?

Back

A line segment is a part of a line that has two endpoints.