Question 1036432
If each side of a scalene traingle is tripled then prove that ratio of their area will be 1:9.
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Use Heron's Law.
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{{{Area = sqrt(s*(s-a)*(s-b)*(s-c))}}} where a, b & c are the sides, and s = (a+b+c)/2
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{{{sqrt(3s*(3s-3a)*(3s-3b)*(3s-3c)) = 9*Area}}}