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An equilateral triangle is baisicaly 2 30-60-90 tiangles put together. The height of the longer lg of a 30-60-90 triangle is always root 3 times the length of the shorter leg. Because the length of the shorter legs of the 2 30-60-90 triangles in the equilateral triangle is half the base, the altitude is 31/2/2*b where b is the base.

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Q: What is the altitude of an eqilateral triangle having base equal to 3 foot?
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Related questions

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An eqilateral triangle.


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