Interior and Exterior Angle of Polygons

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

• (n-2)180

• ((n-2)180)/360

• ((n-2)360)/n

• 360/n

• ((n-2)180)/n

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 sum of the angles of a 17-gon.

Mathematical Equivalence

ON

What is the sum of the interior angles of the nonagon shown?

• 720° 

• 900° 

• 1080° 

• 1260° 

What is the sum of the interior angles of the hexagon shown?

• 180° 

• 540° 

• 720° 

• 1080° 

What is the sum of the interior angles for a 24-gon?

• 3960

• 360

• 15

• 4280

Find the value of X.

• 100° 

• 110° 

• 150° 

• 168° 

What is the measure of ONE interior angle in a regular pentagon (5-sides)?

• 90°

• 108°

• 120°

• 180°

What is the measure of ONE interior angle in a regular hexagon (6 sides)?

• 60°

• 80°

• 108°

• 120°

The following polygon is a Regular Pentagon. Find the measure of EACH EXTERIOR angle of the polygon.

• 50°

• 55°

• 72°

• 355°