Question

the perimeter of a rectangle is 42 cm and its length is doubled its breadth find the length and breadth of the rectangle.
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Answer 1

answer is length=14cm,breadth=7cm

Answer 2

given that

perimeter of rectangle =42

let breadth be x

length =2x

perimeter of rectangle = 2 (l+b)

42=2 (2x+x)

42=4x+2x

42=6x

x=42/6

x=7

breadth=7

length =2x

2 (7)

14

length=14

breadth=7

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