PREIB Polygon Angle Sum Theorem

Find the measure of one interior angle in regular 25-gon. Round your answer to the nearest tenth if necessary.

• 164.3⁰

• 167.1⁰

• 165.6⁰

• 166.7⁰

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

• 108

• 128.6

• 120

• 144

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

Tags

CCSS.HSG.CO.A.1

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

• 90⁰

• 45⁰

• 60⁰

• 51.4⁰

Tags

CCSS.7.G.B.5

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

• 27.7⁰

• 60⁰

• 72⁰

• 40⁰

Tags

CCSS.7.G.B.5

What is the sum of the measures of the exterior angles of a decagon?

• 1440⁰

• 360⁰

• 144⁰

• 1800⁰

If the exterior angle of a regular polygon is 22.5°, how many sides does it have?

• 16 sides

• 2 sides

• 3 sides

• 18 sides

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.3

Find the value of x.

• 540⁰

• 121⁰

• 134⁰

• 360⁰

Tags

CCSS.7.G.B.5

Solve for x.

• 900⁰

• 27⁰

• 35⁰

• 21⁰

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

Tags

CCSS.7.G.B.6