Question

the length of a rectangle is twice its breadth if the perimeter of rectangle is 180 metre find the dimensions​

Answer 1

Given ; a rectangle ;

let

• breadth = b
• thus length = 2b

Thus perimeter = 2(l+b)

• P = 2(l+b)
• 180 = 2(2b+b)
• 180 = 2(3b)
• 180 = 6b
• b = 30m

Thus ;

• breadth = b = 30m
• length = 2b = 60m

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#BAL

Answer 2

Step-by-step explanation:

length is twice the width

let,

length of rectangle =2x

width of rectangle =x

perimeter of rectangle =2(l+b)

180=2(2x+x)

180=2(3x)

180=6x

180/6=x

30=x

x=30

length =2x=60

breadth =x=30

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