Interior Angle Sum of Polygons

Front

What is the formula to calculate 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 angle measures in a triangle?

Back

180°

Front

What is the sum of the angle measures in a quadrilateral?

Back

360°

Front

What is the sum of the angle measures in a pentagon?

Back

540°

Front

What is the sum of the angle measures in a hexagon?

Back

720°

Front

What is the sum of the angle measures in a heptagon?

Back

900°

Front

What is the sum of the angle measures in an octagon?

Back

1080°

Front

What is the sum of the angle measures in a nonagon?

Back

1260°

Front

What is the sum of the angle measures in a decagon?

Back

1440°