HG 5.1-5.2 Angles of Polygons Practice

Front

What is the formula to calculate the sum of the interior angles of a polygon with n sides?

Back

The formula is (n-2) × 180°.

Front

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

Back

The sum of the interior angles of a triangle is 180°.

Front

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

Back

The sum of the interior angles of a quadrilateral is 360°.

Front

How many sides does a nonagon have?

Back

A nonagon has 9 sides.

Front

What is the measure of each interior angle of a regular pentagon?

Back

Each interior angle of a regular pentagon is 108°.

Front

True or False: The sum of the interior angles of a regular nonagon is 1080°.

Back

False. The sum is 1260°.

Front

What is the measure of each interior angle of a regular hexagon?

Back

Each interior angle of a regular hexagon is 120°.

Front

If each interior angle of a polygon is 120°, what is the name of the polygon?

Back

The polygon is a hexagon.

Front

What is the relationship between the number of sides of a polygon and the sum of its interior angles?

Back

The sum of the interior angles increases as the number of sides increases.

Front

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

Back

Divide the sum of the interior angles by the number of sides: (n-2) × 180° / n.