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Finding the Diameter of a Cyclic Quadrilateral

Thread starter schlynn
Start date Dec 9, 2009
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Cyclic Diameter

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schlynn

Thread starter
Dec 9, 2009

#1

Homework Statement

Given a cyclic quadrilateral with side lengths 1, 2, 3 and d (in that order) where d is the diameter of the circle, find d.

The Attempt at a Solution

I tried using Ptolemy's theorem and Brahmagupta's formula, but to no avail. Can I get pointed in the correct direction please?

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singular

Dec 10, 2009

#2

Maybe you can find something useful http://pballew.blogspot.com/2009/10/notes-on-cyclic-quadrilaterals.html" .

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