Area and Perimeter Review

The length of a rectangle is 4 1 /2 centimeters. Its width is 5 3/4 centimeters. What is the area of the rectangle?

• 20 1/2 centimeters

• 20 1/2 square centimeters

• 25 7/8 centimeters

• 25 7/8 square centimeters

Jorja wants to place a border around a poster with dimensions shown. How many inches of border will she need?

Mathematical Equivalence

ON

Brent wants to place new carpet in his rectangular bedroom. The bedroom is 12 2/3 feet long and 10 1/6 feet wide. How much carpet does Brent need? For each box, fill in the bubble before the number, word, or phrase that is correct.

To find the amount of carpet he needs, Brett should find the​ ​ (a)   of the floor. He needs​ (b)   ​ (c)   of carpet.

• area
• 128 14/18
• square feet
• feet
• perimeter
• 45 4/6

Match each pair of rectangle dimensions to the perimeter of the rectangle they form.

• P = 5 12.8 units

• ℓ = 5 2.4 units;

  w = 5 4.5 units

• P = 5 12.6 units

• ℓ = 5 3.8 units

  w = 5 2.6 units

• P = 5 13.8 units

• ℓ = 5 1.2 units

  w = 5 5.1 units