Missing Side for Perimeter

Find the missing side length! What is the perimeter?

If the perimeter of the rectangle is 26 units, what is the missing side length?

If the perimeter of the shape is 34 units, what is the missing side?

Ray found the perimeter of the window in his bedroom to be 12 feet. If the length of the window is 4 feet long, what is the width?

The perimeter of an equilateral triangle is 18 inches. What is the length of one side?

• 4 inches

• 5 inches

• 6 inches

• 9 inches

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

A square playground has a perimeter of 48 meters. What is the length of one side of the playground?

• 12 meters

• 24 meters

• 8 meters

• 16 meters

The perimeter of a square is 36 meters. What is the length of one side?

• 6 meters

• 9 meters

• 12 meters

• 18 meters

The perimeter of an equilateral triangle is 18 metres. What is the length of one side?

• 3 metres

• 4 metres

• 5 metres

• 6 metres

A word problem: A rectangular field has a perimeter of 100 meters. If the length is 30 meters, what is the width of the field?

• 20 meters

• 35 meters

• 40 meters

• 70 meters