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6 July, 05:56

A triangle has height 15in. and area 120in squared. what is the length of its base?

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Answers (2)
  1. 6 July, 07:06
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    The formula for the area of a triangle is Area=.5 (b) (h)

    So fill in what you know:

    120=.5b*15

    Then solve for b.

    120=7.5b

    b=16
  2. 6 July, 08:12
    0
    area for triangle = 1/2 x b x h

    area = 120

    height = 15

    120 = 1/2 * b * 15

    divide both side by 1/2

    240 = b * 15

    divide both sides by 15

    b = 240/15 = 16

    base is 16 inches

    check: 1/2 * 16 * 15 = 120 sq. in.
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