Math, asked by chattni13, 1 year ago

the perimeter of a rectangle is 81 cm and its breadth is 12 m .find the length of the area

Answers

Answered by sagar22072004pathak
6
give data l=?
b=12
p=81
p=2(l+b)
81=2(l+12)
81=2l+24
2l=81-24
2l=57
l=57/2ans.
area=l*b
area=12*57/2
area=6*57(as 12 and 2 get crossed with each other)
area=342m2

sagar22072004pathak: area=342cm
chattni13: can you do this step by step
sagar22072004pathak: given u the solution of area step by step
chattni13: I don't know
sagar22072004pathak: check in my given answer
sagar22072004pathak: and mark it as brainliest
chattni13: ok
chattni13: thanks a lot
sagar22072004pathak: plss mark it as brainliest
chattni13: ok
Answered by noorjahan24
4
Perimeter = 2(l+b)
81=2(l+12)
81=2l+24
81-24=2l
57=2l
l=57/2
l=28.5
Length =28.5

chattni13: can you find the area for this
chattni13: step by step
noorjahan24: area=l*b, area=28.5 *12
chattni13: tq
noorjahan24: it's ok
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