Answers

2015-01-25T13:22:46+05:30
Perimeter of rectangle=2*(l+b)
82=2*(l+b)
82/2=l+b
41=l+b
41-l=b
area of rectangle=l*b
400=l*b
400/l=b
400/l=41-l
400=41l-l^2
l^2-41l+400=0
l^2-25l-16l+400=0
l(l-25)-16(l-25)=0
(l-25)(l-16)=0
l=16 or 25
then b=25 or 16
anything you can put the value of b

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