Question

the area of a rectangular field is 56 metres square if the breadth of this field is 7 m square what is its length

Answer 1

l x b =56 msq. 7 x l = 56 m square. :.. l= 56/7 = 8 m

Answer 2

AREA =(L+B)×2
ACCORDING TO THE QUESTION
AREA =56
BREADTH =7
LENGTH =?
56=(L+7)×2
56=2L+14
56-14=2L
42=2L
42/2 =L
21 =L

SO LENGTH IS 21 square metre
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