Question

A rectangular field is to be covered on three sides leaving a side of length 20m uncovered. If the area of the field is 600m2 How many metres of fencing is required?​

Answer 1

ANSWER

If length of one side is 20 m and area is 680 m

2

⇒ Length of other side =

20

680

=34 m

Now, length of fencing required for the three sides =34+34+20=88 m

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Answer 2

Area of rectangular = 600

20 × b = 600

600/20 = 34

width is = 34

Now fencing means perimeter

2(l+b)

2 ( 20 + 34 )

2 × 54 = 108

So 108 m long have

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