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The altitude of an equilateral triangle is 9 meters, what is the side length?
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The altitude of an equilateral triangle is 9 meters, what is the side length?

User Muhammad Nabeel Arif
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1 Answer

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h=9=(a\sqrt3)/(2)\\ (a\sqrt3)/(2)=9\\ a\sqrt3=18\\ a=(18)/(\sqrt3)\\ a=(18\sqrt3)/(3)\\ a=6\sqrt3
User Moto
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