Perimeter Unknown Sides

An envelope from the post office is 6 inches wide and 8 inches long. What is the perimeter of the envelope?

• 48 inches

• 48 square inches

• 28 square inches

• 28 inches

An envelope is 3 inches wide with a perimeter of 30 inches. What is the length of the envelope?

• 90 inches

• 24 inches

• 12 inches

• 10 inches

Kendra is helping her teacher put chalk around the perimeter of the school field. The field is a rectangle with two sides measuring 100 feet and two sides measuring 75 feet. What is the perimeter of the field?

• 1,234 feet

• 350 feet

• 500 feet

• 750 feet

What is the missing measurement? 

• 9 cm

• 18 in

• 18 cm

• 9 in 

What is the perimeter of the rectangle? (Hint: top matches the bottom, left matches the right!)

• 28 sq feet

• 28 feet

• 48 feet

• 48 sq feet

What is the perimeter of the fence?

• 25

• 30

• 35

• 40

Do you multiply or add when you find the perimeter?

• Multiply

• Add

A square garden has a perimeter of 100 feet.  What is the length of each side?

• 25 feet

• 50 feet

• 400 feet

• 100 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

A rectangular pizza has a perimeter of 24 inches. If the length is 8 inches, what is the width?

• 4 inches

• 6 inches

• 8 inches

• 3 inches