Question

The length of a rectangle is twice it’s width if the perimeter of the rectangle is 54 cm

Answer 1

Answer:

L = 18 cm

B = 9 cm

Step-by-step explanation:

Let the Breadth of the Rectangle be "x".

According to the Q,

>> Length of the Rectangle = 2 Breadth

>> l = 2b

>> l = 2x

Given that:

>> Perimeter = 54 cm

>> 2(l + b) = 54

>> 2(2x + x) = 54

>> 2 * 3x = 54

>> 6x = 54

>> x = 9

Breadth:

>> x

>> 9 cm

Length:

>> 2x

>> 2 * 9

>> 18 cm

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Answer 2

Answer:

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Step-by-step explanation:

let the breadth be x

let the length of rectangle be 2x

perimeter be 54cm

perimeter = 2(l+b)

2(x+2x)

2(3x)

54 =6x

x=54/6

x=9cm

l=18cm

b=9cm