Question

The perimeter of a rectangle is 28cm..Find its length of the rectangle

Answer 1

Answer:

10

Step-by-step explanation:

Call length and breadth, L and B.

Thus L = 2B + 2

Also perimeter P = 2L + 2B = 28

Substitute the first equation into the second and get

2(2B + 2) + 2B = 28

4B + 4 + 2B = 28

6B + 4 = 28

6B = 24

B = 4

L = 10

Answer 2

Step-by-step explanation:

let length of rect. be 2x

breadth be x

perimeter =2(l+b)

28=2(2x+x)

28/2=3x

14=3x

14/3=x

length =2x=2*14/3=28/3

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