Practice: Area & Perimeter

Grade 3 Mathematics

Name:
Date:
Directions: Find the area and/or perimeter as directed. Show your work. Remember: Area = length × width (square units). Perimeter = add all sides (units).

Part A: Find the Area (Count the Squares)

1.

Area = sq units

2.

Area = sq units

3.

Area = sq units

4.

Area = sq units

Part B: Find the Area (Use the Formula)

5.
9 cm 5 cm

Area = _____ × _____ = sq cm

6.
8 in 8 in

Area = _____ × _____ = sq in

7.
12 ft 4 ft

Area = _____ × _____ = sq ft

8.
7 m 6 m

Area = _____ × _____ = sq m

Part C: Find the Perimeter

9.
10 cm 4 cm

P = ___ + ___ + ___ + ___ = cm

10.
7 in 7 in

P = ___ + ___ + ___ + ___ = in

11.
11 ft 5 ft

P = ___ + ___ + ___ + ___ = ft

12.
9 m 3 m

P = ___ + ___ + ___ + ___ = m

Part D: Find BOTH Area and Perimeter

13. Rectangle: 6 cm by 4 cm

Area = sq cm

Perimeter = cm

14. Square: 5 inches on each side

Area = sq in

Perimeter = in

Part E: Composite Figures (Find the Area)

15.

Area = sq units

16.

Area = sq units

Part F: Word Problems

17.

Emma wants to put a border around her rectangular poster. The poster is 8 inches long and 6 inches wide. How many inches of border does she need?

Answer: inches

18.

Mr. Johnson wants to tile his kitchen floor. The floor is 9 feet long and 7 feet wide. How many square feet of tiles does he need?

Answer: square feet

19.

A farmer is building a fence around a square garden that has sides of 12 meters. How many meters of fencing does the farmer need?

Answer: meters

20.

Lila's bedroom rug is 5 feet long and 4 feet wide. What is the area of the rug?

Answer: square feet