Question

The length and breadth of a rectangular plot are in the ratio of 4:3 , if perimeter is 140m it's area will be​

Answer 1

Answer:

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let l be 4x and breadth be 3x

Step-by-step explanation:

p=140

2(4x+3x)=140

7x=70

x=10

length= 4×10=40

breadth=3×10=30

area =l×b

area=30×40=1200

Answer 2

Answer:

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Step-by-step explanation:

let the ratio be for 4x and 3x

Then,

length = 4x

breath = 3x

perimeter = 140 cm

2(l+b) = 140

4x +3x = 140/2

7x = 70

x = 10

length = 4*10 = 40

breath = 3*10 = 30

now,

area = l*b = 40*30

1200 CM square