Question

find the rectangular dimension whose perimeter is 60 m and area is 200m sq​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

the dimensions are length=20m and breadth=10m

Step-by-step explanation:

area =200 m sq

length*breadth=200

breath = 200/length

putting the value of breadth in perimeter

2(l+200/l)=60

2(l²+200)=60l

2l²+400=60l

l²+200=30l

l²-30l+200=0

l²-20l-10l+200=0

l(l-20)+10(l-20)=0

(l+10)(l-20)=0

therefore l=-10, 20

since distance can never be negative so l=20m

putting the value of length in area l*b=200

20*b=200

b=200/20

b=10m

therefore length=20 and breadth=10

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