Question

3. Find the perimeter of a rectangle whose,
(a) area = 4800 m2 and breadth = 60 m.
2
7
(b) area = 8 sq mm and length = 5-mm.
3
9
- b​

Answer 1

Answer:

1. the length of first question will be =4800/60 - 80 m

therefore, perimeter =2×(length + breadth)

=2(80+60)

=2×140

=280

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Answer 2

Answer:

a)l=4800/60=80, perimeter=2(l+b),2(80+60),2(140),===280

b)b=8/5=1.6,2(l+b),2(5+1.6),2(6.6),=====13.2