Properties of Parallelograms & Polygon Angles

Match the following.

• the number of sides of a regular polygon

• n

• one exterior angle measure of a regular polygon

• one interior angle measure of a regular polygon

• sum of the interior angle measure

• sum of the exterior angle measure

Answer explanation

Be sure to add your formulas to your formula sheet. "n" represents the number of sides.

What is the sum of the measures of the interior angles of a pentagon in degrees?

Mathematical Equivalence

OFF

What is the measure of EACH interior angle of a regular octagon in degrees?

What is the measure of EACH interior angle of a regular octagon in degrees?

• 22

• 24

• 26

• 28

Find the value of x.

Find the value of x.

All parallelograms are quadrilaterals.

• Always

• Sometimes 

• Never

Tags

CCSS.5.G.B.4

The figure PQRS is a parallelogram. What is the value of x?

• 72

• 74

• 76

• 78

Tags

CCSS.HSG.CO.C.11

Given that WXYZ is a parallelogram, find the value of b.

• 6

• 8

• 10

• 12

Tags

CCSS.HSG.CO.C.11