An equilateral triangle is inscribed in a circle of radius r. Express the circumference C of the circle as a function of the length x of a side of the triangle.

HINT GIVEN:

First show that r^2 = (x^2/3).

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- Jan 22nd 2007, 05:34 PMsymmetryEquilateral Triangle Inscribed in Circle
An equilateral triangle is inscribed in a circle of radius r. Express the circumference C of the circle as a function of the length x of a side of the triangle.

HINT GIVEN:

First show that r^2 = (x^2/3). - Jan 22nd 2007, 10:33 PMearboth
- Jan 23rd 2007, 02:35 AMsymmetryok
I totally get it.

Thanks for the picture.

Can you attach diagrams from now on with your reply? It is a lot easier for me to see what is happening that way.