Regular Polygon Angles Interior Exterior

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

• 180(n−2)

• 180(n−2)÷n

• 360

• 360/n

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

• 180(n−2)

• 180(n−2)÷n

• 360

• 360/n

If the sum of the interior angles of a polygon equals 900°, how many sides does the polygon have? 

• 7

• 9

• 10

• 12

What is the value of x?

• 26.25

• 38.75

• 24

• 25.125

Find the measureof the sum of the exterior angles in a hexagon

• 360

• 180

• 720

• 540

What is the sum of the exterior angles of a decagon

• 1440

• 360

• 540

• 720

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

• 180

• 360

• 3240

• 162

What is the measure of each interior angle of a regular octagon?

• 135

• 180

• 145

• 190

What is the formula for the sum of interior angles in a 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