Interior Angle Sum of Polygons

Front

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

Back

180°

Front

How do you calculate the sum of the interior angles of a polygon?

Back

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

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 sum of the interior angles of a nonagon?

Back

1260°

Front

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

Back

1440°

Front

If a polygon has 12 sides, what is the sum of its interior angles?

Back

1800°