Question

The area of a rectangular lawn is 225 m². If its length is 15 m, find its perimeter.​

Answer 1

Answer:

First we have to find its breadth

therefore,

$15 \times b = 225 \\ b = \frac{225}{15} = 15m$

so breadth is 15m

therefore

$perimeter = 2(15 + 15) = 60m$

Answer 2

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Given:-

Area of Rectangular lawn = 225m²

Length of Rectangle = 15m.

To Find:-

Perimeter of Rectangle.

Formulae used:-

Area of rectangle = L × B

Perimeter of Rectangle = 2 ( L + B )

Now,

→ Area of Rectanglular = L × B

→ Area of Rectanglular = 15 × x

→ 225 = 15x

→ x = \sf{\dfrac{225}{15}}

15

225

→ x = 15

Hence, The Breadth of Rectangle is 15m.

Now,

→ Perimeter of Rectangle = 2 ( L + B)

→ Perimeter of Rectangle = 2 ( 15 + 15 )

→ 2 × 30

→ 60m²

Hence, The Perimeter of Rectangle is 60m².