Question

The length of a rectangle is 4 cm more than it's breadth it's perimeter 56 . find the length and breadth?​

Answer 1

Answer:

breadth= 12cm

length=16cm

Step-by-step explanation:

breadth= x cm

length= x+4 cm

perimeter= 2(l+b)

        56     = 2(x+4+x )

         56     =2(2x+4)

        56     = 4x+8

      56-8     =4x

      48       =4x

         $\frac{48}{4}$       = x

         12       = x

∴breadth= x cm

             = 12 cm

length= x+4 cm

          = 12+4

          = 16 cm

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HOPE IT WILL HELP YOU...

Answer 2

Answer:

Step-by-step explanation:

LET THE BREADTH BE X

THEN LENGTH = X + 4

FORMULA FOR PERIMETER OF RECTANGLE IS 2(L+B) SO

2(X+4+X)= 4X+8

NOW 4X+8 = 56

SO 4X = 48

X = 48/4

X= 12

SO LENGTH = 12 + 4 = 16

BREADTH = 12