Polygon Sums Interior and Exterior

What is the measure of each exterior angle in a 13-gon?

(a)  

What is the measure of each interior angle in a 19-gon

(a)  

The measure of the exterior angle in a regular polygon is 22.5^o. How many sides does the polygon have?

(a)  

Find the measure of angle E.

• 9

• 97°

• 48°

• 79°

What is the value of x?

• 26.25

• 38.75

• 24

• 25.125

Solve for x

• 7

• 9

• 11

• 14

Solve for the m<C

• 93

• 96

• 102

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

• 180 (n - 2)

• 180 (n - 1)

• 360

• (180) (n - 3)

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

Solve for x. 

(Hint: find the angle sum first)

• 100

• 120

• 125

• 130