Polygon Angles Sum Theorems

Solve for the m<C

• 93

• 96

• 102

Solve for x

• 7

• 9

• 11

• 14

How do the interior and exterior angles of a polygon relate?

• They are complementary

• They are congruent

• They are supplementary

• They have no relationship

• The relationship depends on what polygon is being used

What is the formula to find one exterior angle in a regular polygon?

• 360/n

• (n-2)180

• it's always 360^o

• 180/n

• ((n-2)180)/n

Find the value of y.

• 125

• 135

• 140

• 110

Solve for x. 

• 12

• 10

• 25

• 5

Solve for x. 

(**HINT: Don't just assume the angles are symmetrical!)

• 100

• 120

• 125

• 130

Find the sum of the interior angles for the polygon.

Find the sum of all the exterior angles for this polygon.

b. Find the measure of one interior angle for the regular polygon.