The length of a rectangular field is 20 m more than its breadth. If the perimeter of the field is 280 m, find length and breadth

February 2023 1 3 Report

The length of a rectangular field is 20 m more than its breadth. If the perimeter of the field is 280 m, find length and breadth of field?

Answer:

l = 20 + b

Step-by-step explanation:

p = 2(l + b)

= 2 (20+b + b)

= 2 (20 + 2b)

= 40 + 4b = 280

4b = 280 - 40 = 240

b = 240/4 = 60m

l = 20 + b = 20 + 60 = 80.

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