Review the basics of area of rectangles and try some practice problems.

What is area?

Area is the space inside of a two-dimensional shape. We can also think of area as the amount of space a shape covers.
For example, the rectangle below has an area of 12 square units because it covers 12 square units.
Want to learn more about the concept of area? Check out this video.

Area of a rectangle formula

To find the area of a rectangle, we multiply the length of the rectangle by the width of the rectangle.
A, r, e, a, space, o, f, space, r, e, c, t, a, n, g, l, e, equals, l, e, n, g, t, h, times, w, i, d, t, h
Want to know why this formula works? Check out this video.

Example 1:

A, r, e, a, equals, l, e, n, g, t, h, times, w, i, d, t, h
empty space, equals, 6, times, 2
empty space, equals, 12, space, s, q, u, a, r, e, space, u, n, i, t, s

Example 2:

A, r, e, a, equals, l, e, n, g, t, h, times, w, i, d, t, h
empty space, equals, 7, times, 4
empty space, equals, 28, space, s, q, u, a, r, e, space, u, n, i, t, s

Practice set 1: Multiply to find area

Problem 1A
What is the area of the rectangle?
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
  • an exact decimal, like 0, point, 75
  • a multiple of pi, like 12, space, p, i or 2, slash, 3, space, p, i
square units

Want to try some more area of rectangle problems? Check out this exercise:
Area of rectangles

Practice set 2: Count square units to find area

Problem 2A
What is the area of the shape? Each square in the grid is a 1, times, 1 unit square.
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
  • an exact decimal, like 0, point, 75
  • a multiple of pi, like 12, space, p, i or 2, slash, 3, space, p, i
square units

Practice set 3: Challenge items

Problem 3A
This cat and bird picture has an area of 56 square centimeters. The height of the picture is 7 centimeters.
What is the width of the picture?
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
  • an exact decimal, like 0, point, 75
  • a multiple of pi, like 12, space, p, i or 2, slash, 3, space, p, i
centimeters