Dvg Polygon Angle Sum

Find the sum of the interior angles of a nonagon.

• 1260

• 900

• 1620

• 180

Find the measure of ONE exterior angle of a regular decagon.

• 36

• 10

• 18

• 40

Find the number of sides of a polygon with one exterior angle measuring 6⁰.

• 60

• 30

• 20

• 10

Find the value of the variable(s).

• x = 88

• x = 176

• x = 90

• x = 174

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

• 17

• 15

• 19

• 11

The sum of the exterior angles of a polygon is __________________ where n is the number of sides.

• 360

• n

• (n - 2)180

• (n - 1)180

Find the value of the variable(s).

• x = 50, y = 69

• x = 100, y = 50

• x = 100, y = 69

• x = 50, y = 50

What is the value of x?

• 26.25

• 38.75

• 24

• 25.125

Find the value of x

• 87°

• 54°

• 101°

• 92°

Tags

CCSS.HSG.CO.C.11

Which formula is used to find the sum of the interior angles of a polygon?

• 180

• 360

• (n-2)180

• n(n-3)/2