Polygon Angle-Sum Theorem

Find the value of y.

• 125

• 135

• 140

• 110

Tags

CCSS.7.G.B.5

If the sum of the measures of the interior

angles of a polygon is 5400°, how many sides

does it have?

• 13 sides

• 30 sides

• 32 sides

• 15 sides

Find the measure of one interior angle in regular pentagon. Round your answer to the nearest tenth if necessary.

• 108

• 128.6

• 120

• 144

Solve for x.

• 900⁰

• 27⁰

• 35⁰

• 21⁰

Find the measure of one exterior angle in the regular polygon. Round your answer to the nearest tenth if necessary.

• 32.7⁰

• 90⁰

• 45⁰

• 60⁰

Find the sum of the angles measures of a 21-gon.

• 3240

• 3600

• 3780

• 3420

Find the sum of the angle measures for a 42-gon.

• 7560

• 7200

• 7380

• 7020

Find the sum of the angle measures of a 50-gon

• 8820

• 9000

• 8640

• 8460

Find the sum of the angle measures of a 205-gon

• 36540

• 36900

• 36720

• 37080

Find the measure of one angle of this REGULAR polygon.

• 130

• 140

• 150

• 160