Classifying Polygons

Front

What is a polygon?

Back

A polygon is a closed figure made up of straight line segments. The segments are called sides, and the points where the sides meet are called vertices.

Front

How many sides does a triangle have?

Back

A triangle has 3 sides.

Front

What is the name of a polygon with 4 sides?

Back

A quadrilateral.

Front

What is the name of a polygon with 5 sides?

Back

A pentagon.

Front

What is the name of a polygon with 6 sides?

Back

A hexagon.

Front

What is the name of a polygon with 7 sides?

Back

A heptagon.

Front

What is the name of a polygon with 8 sides?

Back

An octagon.

Front

What is the name of a polygon with 9 sides?

Back

A nonagon.

Front

What is an obtuse angle?

Back

An obtuse angle is an angle that measures more than 90 degrees but less than 180 degrees.

Front

What is a right angle?

Back

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