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https://web2.0calc.com/questions/math_59930

 May 27, 2021
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What is the length of the side of an equilateral triangle if the height is 7√3?

 

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\(a^2=(\frac{a}{2})^2+(7\sqrt{3})\)

\(\frac{3a^2}{4}=(7\sqrt{3})^2\\ a^2=\dfrac{49\cdot 3\cdot 4}{3} \)

\(a=14\)

laugh  !

 May 29, 2021

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