Interior and Exterior Angles of a Polygon

What is the formula for the sum of the interior angles of a polygon

• (n-2)/180

• (n-2) + 180

• (n-2) x 180

• (n-2) - 180

What is the formula to find an interior angle of a regular polygon?

• $\frac{\left(n-2\right)\cdot180}{n}$

• $\left(n-2\right)\cdot180$

• $\left(n-2\right)$

• $\frac{\left(n-2\right)}{n}$

The exterior angles always have a sum of

• 180

• 360

What is the sum of the interior angles of a hexagon(6 sides)?

• 540

• 1080

• 900

• 720

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

• 1080

• 1260

• 1620

• 1440

What is the sum of the interior angles of a 27-gon?

• 4320

• 4680

• 4500

• 4860

What is the measure of one interior angle of a regular decagon (10 sides)?

• 225

• 180

• 1440

• 144

What is the measure of one interior angle of a regular 32-gon?

• 168

• 180

• 5400

• 168.75

Find x

• 540

• 112

• 242

• 142

Find x

• 150

• 265

• 1080

• 105