Polygon Interior Angles

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

What is the SUM of the interior angles in a triangle (3 sides)?

• 60°

• 90°

• 120°

• 180°

What is the SUM of the interior angles in a nonagon (9 sides)?

• 1440°

• 900°

• 1080°

• 1260°

Find angle x

• 247^o

• 67^o

• 157^o

• 203^o

Find angle x

• 247^o

• 67^o

• 157^o

• 203^o

Find angle x

• 125^o

• 215^o

• 35^o

• 65^o

Find angle x

• 236^o

• 56^o

• 146^o

• 191^o

Find angle x

• 21^o

• 201^o

• 111^o

• 191^o

Find angle x

• 252^o

• 72^o

• 162^o

• 171^o

Find angle x

• 220^o

• 130^o

• 40^o

• 170^o