Question

perimeter of rectangle​

Answer 1

Answer:

perimeter of the rectangle = 40cm

       2(l+b)   = 40

2(3x + 1x )    = 40

  2(4x)        = 40

            8x    = 40

                x   = 5

breadth of rectangle = x = 5

length of rectangle   = 3x = 15

Answer 2

Step-by-step explanation:

breadth of rectangle = x cm

and length of rectangle = 3x cm

perimeter of the rectangle=40

2( x + 3x ) = 40

2 × 4x = 40

8x =40

x = 5

therefore breadth of rectangle =5cm

and length of rectangle= 15 cm

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