Polygon Given Interior Angle

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

• 135
• 180
• 145
• 190

The sum of the interior angles of a polygon is 1620°.  How many sides does the polygon have?

• 8
• 11
• 3
• 16

The sum of the interior angles of a polygon is 3960°. How many sides does the polygon have?

• 12
• 24
• 25
• 13

The measure of an interior angle of a regular polygon is 120. How many sides does the polygon have?

• 3

• 4

• 6

• 8

What is the measure of ONE interior angle in a regular hexagon?

• 60°

• 80°

• 108°

• 120°