Finding the Perimeter

What is the formula in finding the perimeter of the rectangle?

• P= 2l x 2w

• P = 2 x ( l + w )

  or

  P= 2l + 2w

• P= 2l - 2w

• P= 2w + 2l - 2

Find the perimeter of the following figure.

Anton puts a rail around his patio.

The patio is in the shape of a

rectangle with side lengths of 7 feet

and 9 feet. What is the perimeter of

Anton’s patio?

• 16 feet

• 63 feet

• 22 feet

• 32 feet

Alexander makes this name plate

from wood in art class. What is the

perimeter of the name plate?

• 18 cm

• 9 cm

• 3 cm

• 6 cm

What is the perimeter of the flag?

• 2 inches

• 1 inch

• 3 inches

• 6 inches

Austin’s class is making a poster for

Earth Day. What is the perimeter of

the poster?

• 30 feet

• 21 feet

• 24 feet

• 15 feet

What is the perimeter of this rectangle?

• 21 units

• 3 units

• 12 units

• None of these

Find the perimeter of the following figure.

Benjamin builds a fence in the

shape of a triangle. Each side of

the fence is the same length. If the

perimeter is 36 feet, how long is

each side of the fence?

• 6 feet

• 12 feet

• 9 feet

• 18 feet

Sally is putting frosting around the edges of the

roof of a gingerbread house. What is the perimeter

of the roof?

• 18 cm

• 16 cm

• 8 cm

• 20 cm