Finding Degrees of Polygons

Find the sum of the interior angles of a nonagon.

• 1260

• 900

• 1620

• 180

Find the measure of angle E.

• 9

• 97°

• 48°

• 79°

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

What is the value of x?

• 26.25

• 38.75

• 24

• 25.125

Solve for x. 

• 100

• 120

• 125

• 130

Tags

CCSS.3.MD.D.8

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

• 90°

• 108°

• 120°

• 180°