Area is the number of square units needed to cover a 2-dimensional object.
Find the area of the rectangle by counting the number of unit squares.
The rectangle has 32 unit squares.
Each unit square has an area of 1 square foot.
So, the area of the rectangle is 32 square feet.
Another way to find the number of unit squares is to multiply the number of rows by the number of columns.
4 × 8 = 32
Area of Rectangle
Area = length × width
The area of a rectangle can be found by multiplying its dimensions, length and width.
| Area | = | length × width |
| = | 14 inches × 10 inches |
| = | 140 square inches |
The area of the shelf liner paper is 140 square inches.
3rd Grade Math - Area Lesson