Angles of Polygons

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

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

Back

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

Front

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

Back

180°.

Front

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

Back

360°.

Front

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

Back

540°.

Front

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

Back

720°.

Front

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

Back

900°.

Front

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

Back

1080°.

Front

What is the measure of one exterior angle in a regular polygon?

Back

360° / n.

Front

What is the relationship between the interior and exterior angles of a polygon?

Back

The interior angle and exterior angle are supplementary; their sum is 180°.