Polygons

An exterior angle in a regular polygon has a measure of 18^o.  What is the sum of the interior angles in this polygon?

• 180^o

• 3,240^o

• 1,440^o

• 360^o

Find one interior angle in a heptagon

• 128.57

• 108

• 120

• 135

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

Find the value of the variable(s).

• x = 88

• x = 176

• x = 90

• x = 174

Find the number of sides of a polygon with one exterior angle measuring 6⁰.

• 60

• 30

• 20

• 10

What is the measure of one interior angle of a regular 45-gon?

• 8°

• 360°

• 172°

• 93°

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

• Octogon

• Nonagon

• Decagon

• Dodecagon

Solve for X

• 27

• 72

• 80

• 14

Solve for x

• 45

• 12

• 90

• 2