How do you find the sum of the INTERIOR angle measures of a polygon?

• s = (n-2) x 180

• n = (s +2) x 360

How do you find the sum of the EXTERIOR angle measures of a polygon?

• s = (n-2) x 180

• n = (s +2) x 360

What is the sum of interior angle measures for a hexagon?

What is the sum of interior angle measures for a 17-gon?

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

What is the measure of EACH exterior angle of a regular pentagon?

The sum of the interior angles of a polygon is 2,160°. How many sides does the polygon have?

• 5 sides

• 8 sides

• 11 sides

• 14 sides

What is the value of x?

Tags

CCSS.HSG.C.A.3

If the figure is a regular polygon, find the value of x.

• x = 14

• x = 5

• x = 12

• x=7

Find the value of x.

• x = 5

• x = 360

• x = 180

• x = 12