Geometry

Front

What is an Acute Angle?

Back

An angle that is less than 90 degrees.

Front

What is a Right Angle?

Back

An angle that is exactly 90 degrees.

Front

What is an Obtuse Angle?

Back

An angle that is greater than 90 degrees but less than 180 degrees.

Front

What is a Straight Angle?

Back

An angle that is exactly 180 degrees.

Front

What are Parallel Lines?

Back

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

Front

What are Perpendicular Lines?

Back

Lines that intersect at a right angle (90 degrees).

Front

What are Intersecting Lines?

Back

Lines that cross each other at any angle.

Front

What does Congruent mean?

Back

Shapes that are the same size and shape.

Front

How many sets of parallel lines can be in a figure?

Back

A figure can have zero, one, two, or more sets of parallel lines.

Front

What is a Polygon?

Back

A closed shape with straight sides.