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giiffnlojd
03.08.2019 •
Mathematics
Marking the height of the traingle is 4m less than its base. the area of the traingle is 48m^2. find the length of the base. 1: 7m 2: 8m 3: 11m 4: 12m
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Ответ:
if the height (h) is 4 less than base (b) then h = b - 4
48 = 0.5(b)(b - 4)
48/0.5 = b² - 4b
96 = b² - 4b
b² - 4b - 96 = 0
(b + 8)(b - 12) = 0
b must be either -8 or 12
since a distance can't be negative that means
the base is 12
Ответ:
at the place of s put there A