Interior Degrees in a Polygon

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

• 2880 degrees

• 2520 degrees

• 344 degrees

• 360 degrees

What is the formula for finding ONE interior angle of a polygon?

• S= (n-2)180

• S= (n-180)2

• S= (n-2)180/n

• S= (n - 180)2/n

Find the sum of the interior angles of a nonagon.

• 1260

• 900

• 1620

• 180

Find the measure of ONE interior angle of a regular dodecagon.

• 150

• 120

• 1800

• 20

A polygon's interior angles add up to 2700.  How many sides does the polygon have?

• 17

• 15

• 19

• 11

Find the number of sides of a regular polygon with one interior angle measuring 165⁰

• 24

• 22

• 26

• 20

Find the value of the variable(s).

• x = 88

• x = 176

• x = 90

• x = 174

Solve for x. 

• 100

• 120

• 125

• 130

What is the measure of ONE interior angle in a regular pentagon (5-sides)?

• 90°

• 108°

• 120°

• 180°

Which formula represents how to find the interior angle sum of any polygon?

• (number of sides - 2) x 180

• (number of sides + 2) x 180

• number of sides x 180

• number of sides x 360