Question

The length of a rectangle is 5 m greater than its width. If the perimeter of the rectangle is 50 m, find its length .​

Answer 1

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let

,

breadth = x

so ,the length = x + 5

perimeter = 2(l+b)

50 = 2(x+5+x)

25 =2x + 5

x = 10

so the length is x + 5 = 10 + 5 = 15m

Answer 2

Explanation:

Given:

length of rectangle is 5m greater than it s width

perimeter =50m

Formula used: perimeter=2(l+b)

Solution:

let the breadth be x

length be x+5

50 = 2(x+5+x)

50=2(5+2x)

25=5+2x

20=2x

x=10

Therefore, length=15 m, breadth=10 m