Question

the total length of all sides of a rectangular park is 72 metres.if it's length is 20 metres than it's area is .
1.- 140 m²
2.- 160 m²
3.- 320m²
4.- 400 m²​

Answer 1

Answer:

Let the breadth be x

Perimeter of the rectangular field - 2(L+B)

2(20+x)m

(40+2x)m

A.T.Q

(40+2x) = 72m

2x = 72-40

2x = 32

x = 32/2

x= 16m

Breadth = 16m

Area of the rectangular field = L× B

= 20×16m

= 320²m

Step-by-step explanation:

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