Math, asked by jitin89091, 1 year ago

If area.Is36 perimeter 30 so what is length and width

Answers

Answered by shrutikchoudhary2005
0

area=36

so, let l be (x)

w(breadth) be (x)

so

area=l*b

36=x*x

36=x2(square)

x=36(2) square

x=6cm

so l=6cm and b=6cm



perimeter=2(l+b)

let l be x

let w(Breadth) be x

so

30=2(l+b)

30=2(x+x)

30=2(2x)

30=4x

x=30/4

x=7.5cm



dorri: why did you took length & width common??
Answered by dorri
0
Area
36=l×b
36/b = l

Perimeter
30= 2(l+b)
30=2(36/b+b) [putting value of l as 36/b]
15b= 36 + b²
b²-15b+36
Splitting the Middle term
b²-12b-3b+36
b(b-12) -3(b-12)
(b-12) & (b-3)
b= 12 & 3

So, length=12, breadth=3(as we know, length is greater than breadth)

You can also verify it.

Hope it helps you :)
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