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19 April, 15:40

Find the base length, b, of a triangle with area 90 cm2? and perpendicular height 15 cm, given

the area formula A=1/2bh.

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Answers (1)
  1. 19 April, 19:17
    0
    12cm

    Explanation:

    A = 1/2 (b) (h)

    Substitute the numbers

    90 = 1/2 (b) (15)

    90 = 7.5b

    B = 12
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