Properties of Polygons

What is the perimeter of the figure plotted on the coordinate grid?

• 48 units

• 26 units

• 40 units

• 35 units

Find the value of X.

• 100

• 120

• 125

• 130

What is the measure of ONE interior angle in a regular hexagon (6 sides)?

• 60°

• 80°

• 108°

• 120°

What is the formula for the sum of the interior?

• S=360

• S=(n-2)180

• n=360/ext. angle

• 1 int. angle + 1 ext. angle=180

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

Solve for X

• 27

• 72

• 80

• 14

Solve for x

• 45

• 12

• 90

• 2

Is the figure a polygon? Is it convex or concave?

• Not a polygon, convex

• Polygon, convex

• Not a polygon

• Polygon, concave