To find the perimeter of a rectangle , add the lengths of the rectangle's four sides. If you have only the length and the breadth, then you can easily find all four sides. Add both the length and breadth and then multiply by two.
Formula
P = 2 ( l + b )
Hope it helps.
Question : The perimeter of a square is half the perimeter of a rectangle. The perimeter of the square is 40 m. If its breadth is two-thirds of its length, then what is the area (in m2) of the rectangle?
Option 1: 384
Option 2: 196
Option 3: 321
Option 4: 400
Question : The perimeter of a square is the same as the perimeter of a rectangle. The perimeter of the square is 40 m. If its breadth is two-thirds of its length, then the area (in m2) of the rectangle is:
Option 1: 121
Option 2: 96
Option 3: 100
Option 4: 84
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