Question

The length if a field is 20m mire than its breadth.If the perimeter of the field is 280m . what is its length?

Answer 1

The length of rectangular field is 20 m more than its width X.

Question states***perimeter is 280 m 2(x+20m) + 2x = 280m4x = 240mx = 60m, the width. The length is 80m (160m+120m = 280m)A = 60m×80m=480m sq.

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Answer 2

L=b+20

Perimeter=2(b+20+b)=280
=2b+20=280/2
=2b+20=140
=2b=140-20
=2b=120
=b=120/2
=b=60
L=b+20
=60+20
=80m