Angles of Polygons

Find the value of x.

Find the measure of

Find the value of x.

Which formula is used to find the sum of the interior angles of a polygon?

• 180

• 360

• (n-2)180

• n(n-3)/2

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

• 3960

• 360

• 15

• 4280

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°

Find the value of X.

• 100

• 120

• 125

• 130

If each on the interior angles is 108°, what is the name of the polygon?

• Triangle

• Pentagon

• Octagon

• Hexagon

If the sum of the interior angles is 3600°, what is the name of the polygon?

• 15-gon

• 18-gon

• 22-gon

• decagon