Calculating Perimeters of Shapes

What is the perimeter of a rectangle with a length of 8 cm and a width of 5 cm?

• 26 cm

• 40 cm

• 13 cm

• 16 cm

A triangle has sides measuring 7 cm, 10 cm, and 5 cm. What is its perimeter?

• 20 cm

• 22 cm

• 24 cm

• 18 cm

If the perimeter of a rectangle is 50 cm and its length is 15 cm, what is its width?

• 10 cm

• 12.5 cm

• 20 cm

• 5 cm

Calculate the perimeter of an equilateral triangle with each side measuring 9 cm.

• 18 cm

• 27 cm

• 36 cm

• 45 cm

A rectangle has a perimeter of 60 cm. If its width is 10 cm, what is its length?

• 20 cm

• 25 cm

• 15 cm

• 30 cm

The sides of a triangle are in the ratio 3:4:5. If the perimeter is 36 cm, what is the length of the longest side?

• 9 cm

• 12 cm

• 15 cm

• 18 cm

Find the perimeter of a rectangle with a length of 12 m and a width of 7 m.

• 38 m

• 42 m

• 24 m

• 19 m

A triangle has two sides measuring 6 cm and 8 cm. If the perimeter is 24 cm, what is the length of the third side?

• 10 cm

• 12 cm

• 8 cm

• 6 cm

If the perimeter of a square is 48 cm, what is the length of one side?

• 12 cm

• 10 cm

• 15 cm

• 8 cm

A rectangle has a length that is twice its width. If the perimeter is 54 cm, what is the width?

• 9 cm

• 6 cm

• 12 cm

• 18 cm