helene8134 helene8134
  • 18-03-2022
  • Mathematics
contestada

Two sides of the rectangle differ by 3. 5 cm find the dimension of the rectangle if its perimetre is 67cm

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devishri1977
devishri1977 devishri1977
  • 18-03-2022

Answer:

Step-by-step explanation:

Two sides of the rectangle differ by 3.5 cm means that one side is 3.5 cm more than the other side.

If width = x cm, then length = x + 3.5

Perimeter = 67 m

2*(length +width) = 67

2*(x + 3.5 + x) = 67

2*(2x + 3.5)  = 67

2*2x + 2*3.5 = 67

4x  + 7   = 67

       4x = 67 - 7

       4x = 60

         x = 60/4

x = 15 cm

Width = 15 cm

Length = 15 + 3.5

           = 18.5 cm

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