Question

the perimeter of a rectangle is 40 and its breath is 8cm find its length​

Answer 1

Hey!!

Answer:

Perimeter (formula)= 2(l+b)

P=40cm

b=8cm

let l be x cm.

Then,

P=2(l+b)

40=2(x+8)

40/2 = x+8

20-8 = x

x=12

Thus l= 12cm.

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