Polygon Angle Sum Preview

Front

What is a polygon?

Back

A closed plane figure made up of line segments.

Front

How many sides does a dodecagon have?

Back

12

Front

What is the name of an 8-sided figure?

Back

Octagon

Front

What is the formula to find the sum of the interior angles of a polygon?

Back

Front

What is the sum of the interior angles for a triangle?

Back

180 degrees.

Front

What is the sum of the interior angles for a quadrilateral?

Back

360 degrees.

Front

What is the sum of the interior angles for a pentagon?

Back

540 degrees.

Front

What is the sum of the interior angles for a hexagon?

Back

720 degrees.

Front

What is the sum of the interior angles for a heptagon?

Back

900 degrees.

Front

What is the sum of the interior angles for an octagon?

Back

1080 degrees.