Find the Unknown Side Given the Perimeter

If the perimeter of an equilateral triangle is 21 cm, what is the length of one side?

• 7 cm

• 14 cm

• 21 cm

• 3 cm

Find the unknown side length if the perimeter is 30 cm.

• 5 cm

• 4 cm

• 8 cm

• 10 cm

A rectangle has a length of 8 cm and a width of 3 cm. If the perimeter is 22 cm, what is the measurement of the unknown side?

• 8 cm

• 3 cm

• 11 cm

• 5.5 cm

What is the side of the square?

• 33 cm

• 33 m

• 38 m

• 38 cm

Find the missing side length of a rectangle if the perimeter is 54 cm, the length is 15 cm, and the width is known to be less than the length.

• 12 cm

• 9 cm

• 24 cm

• 18 cm

This rectangle has a perimeter of 34 cm., find the height

• 11 cm.

• 13 cm.

• 22 cm.

• 5.6 cm.

Farmer Bob needs to build a fence for his chickens. The area he wants to build a fence around is 40 feet long and 20 feet wide. How many feet of fence does he need to buy?

• 800 feet

• 120 feet

• 60 feet

Farmer Bob's son built a track to walk his pet pig.  The track goes around the pig pen.  The pig pen is 15 feet long and 21 feet wide.  If the pig walks all the way around the track, how many feet did he walk?

• 72 feet

• 36 feet

• 36 square feet

Given the area and perimeter, find the length and width.

• length = 4

• length = 6

• length = 8

• width = 4

• width = 5

Given the area and perimeter, find the length and width.

• length = 6

• length = 8

• length = 12

• width = 2

• width = 4