Question

the area of a rectangular lawn is 255 square metre if its length is 15m find the perimeter

pls answer step by step...​

Answer 1

Step-by-step explanation:

Question:-

The area of a rectangular lawn is 255m². If it's length is 15m,find the perimeter.

Answer:-

Given :-

• The given figure is a rectangle.

• The area is 255m².

• The length is 15m.

To find :-

Perimeter of the rectangular lawn

Process :-

In order to find the perimeter of the lawn,we have to find the basics of a rectangle which is length and breadth.

To find Breadth :-

$⇒Area \: of \: rectangle = Length \: × Breadth \\ \\ ⇒255 = 15 × Breadth \\ \\ ⇒15× Breadth = 255 \\ \\ ⇒Breadth = \frac{255}{15} \\ \\ ⇒Breadth = 17m$

To find Perimeter :-

$⇒Perimeter \: of \: rectangle = 2(L+B) \\ \\ ⇒Perimeter = 2( 15+17) \\ \\ ⇒ Perimeter = 2 × 32 \\ \\ ⇒ Perimeter = 64m$

∴ The required perimeter of the rectangular lawn is 64 m.

★ More to know

$⇒Length \: of \: rectangle = \frac{Area}{Breadth} \\ \\ ⇒ Breadth \: of \: rectangle = \frac{Area}{Length}$

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Hope it helps you...

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