Parallelogram Quiz Review

Find the sum of the interior angles of a 29-gon.

Which is the formula to find the sum of the interior angles of any polygon?

A _________ polygon is one in which all angles are equal and all sides are equal.

• irregular

• vertex

• similar

• regular

Find the measure of each interior angle of a regular octagon.

• 26 sides

• 19 sides

• 23 sides

• 31 sides

Find the value of $x.$  

•  $x=10$  

•  $x=23$  

•  $x=16$  

•  $x=8$  

Find the value of $x.$

• $x=12$

• $x=23$

• $x=16$

• $x=19$

What is the sum of exterior angles of a pentagon?

• 180
• 360
• 540
• 760

What is the value of x?

• 26.25
• 38.75
• 24
• 25.125