Question

420 metres of fencing are needed to enclose a rectangular field. If one side is 90 metres more than the other, find the dimensions of the field. WITH WORKING

Answer 1

Answer:

Dimensions are 60 and 150.

Answer is given with explanation

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Step-by-step explanation:

let one side be x and other side be 90+x

so,

perimeter=2(l+b)

420= 2(x+90+x)

420= 2(2x + 90)

420 = 4x + 180

420-180 = 4x

240 = 4x

x = 240/4

x = 60

dimensions:- x=60

90+x = 90+60 = 150