Question

Find the dimensions of a rectangular park whose perimeter is 60m and area 200m square

Answer 1

p=2(l+b)=60

a=l×b=200

l+b=30

l=30-b.............(1)

l×b=200

(30-b)b=200

$b^{2}$-30b+200

$b^{2}$-10b-20b+200

b(b-10)-20(b-10)

b=10,20

A/q

B=10 ,L=20 ANS.

Answer 2

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