Big Ideas Geometry

Find the value of X.

• 100°

• 120°

• 125°

• 130°

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

• 2520°

• 14°

• 180°

• 157.5°

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

• 180°

• 360°

• 3240°

• 162°

The sum of the interior angles in a polygon is 3,240^o.  How many sides are in the polygon?

• 10
• 582,840
• 18
• 20

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

• 180(n−2)
• 180(n−2)÷n
• 360
• 360/n

The sum of all the exterior angles of a polygon =          °

• 360
• (2n −4) rt. angles 
• 560°
• 180

the sum of all the interior angles of polygon which has 11 sides =          ⁰

• 1620
• 990⁰
• 1720
• 1520

Solve for the variables.

• m=5, n=12
• m=12, n=5
• m=7, n=6

Solve for the variables.

• m=68, n=70
• m=35, n=70
• m=35, n=110
• m=68, n=110

What is the value of x?

• 132
• 66
• 114
• 48