Question

If the area of a rectangular plot of land is 440 sq.m and the length is 22 m. Find its perimeter.'

Answer 1

l=22 m

a= 440sq.m

using formula,

A=wl

P=2(l+w)

p= 2l+ 2 A/l

= 2.22+2×440/22= 84 m

hence, p= 84m

Answer 2

$\sf{\huge{\underline{\orange{Given :-}}}}$

• The area of a rectangular plot of land is 440 sq.m.

• The length is 22 m.

$\sf{\huge{\underline{To\:Find :-}}}$

• The perimeter of a rectangular plot of land .

$\sf{\huge{\underline{\green{Answer :-}}}}$

We know that the area of a rectangle = L × B

From given,

• Area = 440 sq.m

• Length = 22 m

➝ 440 = 22 × B

➝ B = 440/22

➝ B = 20 m

The perimeter of a rectangular plot = Perimeter of rectangle

= 2 ( L + B )

= 2 ( 22 + 20 )

= 2 (42)

= 84 m