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21 October, 04:26

What is the base of a triangle with height = 7.4 cm and area = 48.1 cm2?

A. 355.94 cm

B. 6.5 cm

C. 13 cm

D. 177.97 cm

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Answers (2)
  1. 21 October, 07:30
    0
    The area of a triangle is:

    A=bh/2, where b=base length and h=height. Wish to solve for b so:

    2A=bh

    2A/h=b

    b=2A/h, and we were told that A=48.1 and h=7.4 so:

    b = (2*48.1) / 7.4 cm

    b=13cm

    So the base of the triangle is 13 centimeters.
  2. 21 October, 08:05
    0
    The formula is B=2*A/b

    Answer is C. 13cm
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