Measure of Polygons

If the sum of the interior angles of a convex polygon is 1440, how many sides does it have?

• 8

• 9

• 10

• cannot be determined

If the measure of one interior angle on a regular polygon is 150, how many sides does it have?

• 9

• 10

• 11

• 12

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

• 720

• 900

• 1080

• 1260

What is the sum of the exterior angles for a 14-gon?

• 2160

• 25.71

• 360

• 154.29

What is the measure of one interior angle on a regular 20-gon?

• 162

• 18

• 180

• 90

If the measure of one exterior angle on a regular polygon is 40, how many sides does it have?

• 6

• 7

• 8

• 9

What is the measure of one interior angle on a regular octagon?

• 128.57

• 51.43

• 135

• 45

Calculate the sum of the interior angle measures of a polygon with 16 sides.

• 2880 degrees

• 2520 degrees

• 344 degrees

• 360 degrees

Find the measure of angle E.

• 9

• 97°

• 48°

• 79°

Find the sum of the interior angles of a nonagon.

• 1260

• 900

• 1620

• 180