Interior and Exterior Angle Sums of Polygons

Mathematical Equivalence

ON

Find the sum of the measures of exterior angles of the figure.

Mathematical Equivalence

ON

What is the sum of the exterior angles of a 13-gon? Enter your answer as a number only

Mathematical Equivalence

ON

What is the sum of the interior angles inside an octagon?

• 135

• 1440

• 1080

• 2160

What is the sum of the measures of the interior angles of the regular hexagon?

Mathematical Equivalence

OFF

What is the formula for finding the sum of the interior angles of a polygon? (a)  

• S= (n-2)180

• S= (n-180)2

• S= (n-2)180/n

• S= (n - 180)2/n

What is the formula for the sum of the measures of the interior angles for a polygon with x sides?

Mathematical Equivalence

ON

Find the sum of the interior angle measures of a convex 20-gon.

• 3240 degrees

• 3600 degrees

• 5400 degrees

• 3060 degrees

What is the SUM of the angle measures in a nonagon?

• 1440°

• 900°

• 1080°

• 1260°

What is the sum of the exterior angles of a 13-gon? Enter your answer as a number only

Mathematical Equivalence

ON