Interior Angles of Polygons (Use a Calculator!)

Front

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

Back

The sum of interior angles = (n - 2) × 180°, where n is the number of sides.

Front

How many sides does a pentagon have?

Back

A pentagon has 5 sides.

Front

What is the sum of interior angles for a pentagon?

Back

540°.

Front

What is the measure of one interior angle in a regular pentagon?

Back

108°.

Front

How many sides does a hexagon have?

Back

A hexagon has 6 sides.

Front

What is the sum of interior angles for a hexagon?

Back

720°.

Front

What is the measure of one interior angle in a regular hexagon?

Back

120°.

Front

How many sides does an octagon have?

Back

An octagon has 8 sides.

Front

What is the sum of interior angles for an octagon?

Back

1080°.

Front

What is the measure of one interior angle in a regular octagon?

Back

135°.