Sum of Interior Angles of Polygons

Front

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

Back

(number of sides - 2) x 180°

Front

How many sides does a polygon have if the sum of its interior angles is 3,240°?

Back

20 sides

Front

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

Back

180°

Front

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

Back

360°

Front

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

Back

540°

Front

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

Back

720°

Front

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

Back

900°

Front

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

Back

1080°

Front

What is the sum of the interior angles in a nonagon?

Back

1260°

Front

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

Back

1800°