Polygons Review

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

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

3 angles of a quadrilateral are 110, 120 and 50.  What is the measure of the 4th angle?

• 60

• 70

• 80

• 130

Find the sum of the interior angles.

• A

• B

• C

• D

What is the sum of the interior angles of a nonagon (9 sides)?

• 1440°

• 900°

• 1080°

• 1260°

Find the angle sum of the interior angles of the polygon.

• 180° 

• 540° 

• 720° 

• 1080° 

What is the name of a 7 sided polygon?

• hexagon

• heptagon

• octagon

• nonagon

How many sides does an octagon have?

• 8

• 7

• 6

• 9

What is the name of a shape that has 6 sides?

• octagon

• hexagon

• triangle

• pentagon