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13 April, 12:23

The ratio of the side lengths of a triangle is 4:5:8. If the perimeter is 38.25cm, what is the length in cm of the shortest side?

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  1. 13 April, 12:40
    0
    9.0235294, this is roughly equal to 9 cm.

    This is the length of the smallest side.
  2. 13 April, 12:52
    0
    If the ratio of sides is 4:5:8, then the sum must be a multiple of (4+5+8) = 17

    38.25/17=2.25 so each "part" of the ratio is equal to 2.25.

    Since the smallest side is 4 of those parts its length is:

    4*2.25=9cm
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