<PRE><B>Question 1067042</B>
Area(A) of a triangle = (1/2) * base * height
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let x be the length of the height, then base = 2x
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we are given A = 196 square kilometers
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196 = (1/2) * 2x * x
:
x^2 = 196
:
x = square root(196) = + or - 14 kilometers
:
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height of triangle = 14 kilometers
:
Note that we reject the negative value(-14) for the base
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:
we check the answer
:
196 = (1/2) * 28 * 14 = 196
:
our answer checks
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