Interior Angles of Polygons Practice

Front

What is the name of a polygon with 8 sides?

Back

Octagon

Front

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

Back

(n - 2) × 180°, where n is the number of sides.

Front

If the sum of the interior angles in a polygon is 3,240°, how many sides does it have?

Back

20 sides.

Front

How many sides does a quadrilateral have?

Back

4 sides.

Front

What is the measure of one interior angle in a regular polygon with 20 sides?

Back

162°.

Front

What is the name of a polygon with 9 sides?

Back

Nonagon.

Front

What is the name of a polygon with 10 sides?

Back

Decagon.

Front

What is the name of a polygon with 12 sides?

Back

Dodecagon.

Front

How do you find the measure of one interior angle in a regular polygon?

Back

Divide the sum of the interior angles by the number of sides.

Front

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

Back

180°.