Polygon Test

What is the sum of the interior angles inside an octagon?

• 135

• 1440

• 1080

• 2160

Solve for x

• 2

• 3

• 4

• 10

What is the sum of the measures of the interior angles of an 11-gon?

• 1080 degrees

• 900 degrees

• 1620 degrees

• 1980 degrees

ABCD is a parallelogram.

If AC = 8x - 14 and EC = 2x + 11, solve for x.

• 7

• 8.5

• 9

• 9.5

Polygon ABCD is a rectangle.

Find the measure of angle BCE.

• 90 degrees

• 71 degrees

• 63 degrees

• 57 degrees

What is the measure of the missing angle?

• 100 degrees
• 105 degrees
• 110 degrees
• 112 degrees

Find the value of x

• 141
• 150
• 135
• 163

The figure is a parallelogram.  
Solve for x.  

• 1
• 11
• 7
• 6

The figure is a parallelogram.  
Solve for x.  

• 7
• 2
• 0
• 4

Select the correct choice

• A

• B

• C

• D