Interior Angles of Regular Polygons Find the Value of X

Determine the measure of one interior angle in regular heptagon.

• 128.6°

• 51.4°

• 360°

• 900°

Determine the interior angle sum for a regular hexagon.

• 120°

• 60°

• 360°

• 720°

Determine the measure of angle d.

• 144°

• 36°

• 72°

• 18°

Find the value of x

• 87°

• 54°

• 101°

• 92°

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 sum of the interior of angles in a 12-gon

• 1800

• 1080

• 1620

• 1260

Find the value of X.

• 60

• 120

• 85

• 55

What is the sum of the interior angles for a      24-gon

• 3960

• 360

• 15

• 4280

What is the measure of each interior angle of a regular octagon?

• 135

• 180

• 145

• 190

The sum of the interior angles in a polygon is 3,240^o.  How many sides are in the polygon?

• 10

• 582,840

• 18

• 20