Math, asked by Yoheshvaran, 1 year ago

Area and perimeter of a rectangular field for 2000 square metre and 180 metre respectively find its length and breadth

Answers

Answered by bhumichadha2005
1

Answer:

l.b= 2000

2(l+b)=180 so, l+b = 90

l= 50 & b= 40

Answered by shubhu2124
1

Answer:

2(l+b)=180

L=180/2-b

L=90-b

lb =2000

(90-b)b=2000

b^2-90b+2000=0

b^2-50b-40b+2000=0

(b-50)(b-40)=0

b= 50 or 40

Then l = 2000/50

l= 40

i.e. L= 40 and B = 50

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