Angles of Polygons

What is the sum of the exterior angles of a 20-gon?

• 180
• 360
• 3240
• 162

Given the sum of interior angles is 2520, What is the measure of 1 INTERIOR angle of a 16-gon?

• 2520
• 2880
• 180
• 157.5

Calculate the sum of the interior angle measures of a polygon with 25 sides.

• 360 degrees
• 4500 degrees
• 335 degrees
• 4140 degrees

Find the value of x

• 87°
• 54°
• 101°
• 92°

Find the measure of angle E.

• 9
• 97°
• 48°
• 79°

Find the value of x

• 141
• 150
• 135
• 163

Find the sum of the interior of angles in a 12-gon

• 1800
• 1080
• 1620
• 1260

What is the value of x?

• 26.25
• 38.75
• 24
• 25.125

Find the value of x.

• 138
• 540
• 64
• 128

Find the value of the variable(s).

• x = 50, y = 69
• x = 100, y = 50
• x = 100, y = 69
• x = 50, y = 50