The Sum of the Interior Angles of a Regular Polygon

Find the interior angle sum for the polygon shown in the diagram.

• 1440

• 2340

• 900

• 1800

Find the interior angle sum for the polygon shown in the diagram.

• 1080

• 1440

• 1620

• 900

Find the interior angle sum for the polygon shown in the diagram.

• 1080

• 720

• 1440

• 1620

Find the interior angle sum for the polygon shown in the diagram.

• 1620

• 900

• 540

• 360

Find the interior angle sum for the polygon shown in the diagram.

• 540

• 720

• 1440

• 360

The sum of the interior angles of a polygon is __________________ where n is the number of sides.

• (n - 2)180

• (n - 1)180

• 360

• (n - 3)(180)

Find the sum of the interior angles of a nonagon.

• 1260

• 900

• 1620

• 180

If the sum of the interior angles of a polygon equals 900°, how many sides does the polygon have?

• 7

• 9

• 10

• 12

What is a polygon called if the sum of its interior angles equals 1440° ?

• Octogon

• Nonagon

• Decagon

• Dodecagon

What is the formula for the sum of interior angles in a polygon?

• 180(n−2)

• 180(n−2)÷n

• 360

• 360/n