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20 October, 02:45

4. The sides of a triangle are in the ratio 2: 4:5.

If the second side is 56 cm, What is the perimeter of the triangle?

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Answers (1)
  1. 20 October, 04:16
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    Step-by-step explanation:

    Ratio: 2:4:5

    Sides are : 2x, 4x, 5x

    Second side = 56 cm

    4x = 56

    x = 56/4

    x = 14

    2x = 2*14 = 28 cm

    4x = 4*14 = 56 cm

    5x = 5*14 = 70 cm

    Perimeter = 28 + 56 + 70 = 154 cm
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