Interior/Exterior Angles of Polygons

What is the sum of exterior angles in a polygon?

• 180(n−2)

• 180(n−2)÷n

• 360

• 360/n

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

• 180(n−2)

• 180(n−2)÷n

• 360

• 360/n

What is a polygon called if the sum of its interior angles equals 1440° ?

• Octogon

• Nonagon

• Decagon

• Dodecagon

What is the SUM of the angle measures in a nonagon (9 sides)?

• 1440°
• 900°
• 1080°
• 1260°

What is the SUM of the angle measures in a hexagon (6 sides)?

• 720°
• 1080°
• 600°
• 540°

Solve for x.

• 181

• 151

• 137

• 91

Find the value of y.

• 125
• 135
• 140
• 110

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

• 50°

• 55°

• 72°

• 355°

What is the measure of one EXTERIOR angle of a regular octagon?

• 60

• 45

• 1080

• 135

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

• 3960
• 360
• 15
• 4280