Asked by InfaRed

A circle is circumscribed about an equilateral triangle with side lengths of 9 units each. What is the area of the circle, in square units? Express your answer in terms of pi.
Answered by Steve
in an equilateral triangle, the altitudes are the medians.

So, the radius of the circle is 2/3 of the length of each altitude.

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Answered by ur mom
27
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