Question

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The length of a rectangle is twice its breadth. If the perimeter is 72 metre, find the length of the rectangle​

Answer 1

Answer:

(l + b ) ×2

Step-by-step explanation:

so 72 = ( x + 2x ) 2

72/2=x + 2x

36=3x

x=12

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Answer 2

Answer:

12 metre

Step-by-step explanation:

let length of rectangle be- x

breadth- 2x

formula of perimeter= 2×(Length+breadth)

72m (perimeter) =2×(x+2x)

72m= 2×3x

72m= 6x

x= 72

6

x= 12

so length=12m

[optional] breadth=12×2

= 24m