Month 6.3

Find the value of X.

• 100
• 120
• 125
• 130

Which formula represents how to find the interior angle sum of any polygon?

• (number of sides - 2) x 180

• (number of sides + 2) x 180

• number of sides x 180

• number of sides x 360

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 sum of the interior angles of the nonagon shown?

• 720° 
• 900° 
• 1080° 
• 1260° 

What is a regular polygon?

• all side lengths are the same length

• all angles are the same (equal in measure)

• only some side lengths are the same

• all side lengths are different

• only some angles are the same

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

• 1800
• 1080
• 1620
• 1260

What is the SUM of the EXTERIOR angles of a hexagon?

• 360
• 120
• 60
• 720

Find the value of y.

• 125
• 135
• 140
• 110

What is the measure of one EXTERIOR angle of a regular octagon?

• 60
• 45
• 1080
• 135

What is the measure of one INTERIOR angle of a regular octagon?

• 60
• 45
• 1080
• 135