the side of rectangle are in the ratio 3:5 what is the length of it’s side if the perimeter is 64cm​

2 thoughts on “the side of rectangle are in the ratio 3:5 what is the length of it’s side if the perimeter is 64cm​”

1. Answer:

   4

   Step-by-step explanation:

   L = 3x

   B = 5x

   [tex]perimeter \: of \: rectngle \: = 2(l + b) \\ 64 = 2(l + b) \\ 64 = 2(3x + 5x) \\ 64 = 2(8x) \\ 64 = 16x \\ x = \frac{64 }{16} \\ x = \frac{8 }{2} \\ x = 4[/tex]

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2. Step-by-step explanation:

   take 3=3x

   and 5=5x

   perimeter=2×(L+B)

   64=2×(3x+5x)

   64=2×8x

   64=16x

   x=4cm

   1st side =3×4=12cm

   2nd side=5×4=20cm

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