Question

Perimeter of a square and a rectangle is same. If a side of the square is 15 cm and one side of the rectangle is 18 cm, find the area of the rectangle

Answer 1

Answer:

A=270cm²

Step-by-step explanation:

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Answer 2

Answer:

216 cm²

Step-by-step explanation:

Perimeter of square= 4×sides⇒4×15= 60 cm

As perimeter of square = perimeter of rectangle

⇒ perimeter of rectangle= 60 cm

we know, P. of rectangle= 2×(l+b)

                           60         = 2× (18+b)

                           60÷2     = 18+ b

                            30        = 18+b

                          30-18      = b

⇒ b= 12 cm

According to the question,

Area of rectangle= l×b = 18×12= 216 cm²