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| Math Central | Quandaries & Queries |
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Question from Marisa, a student: I know that the only rhombus that can be inscribed in a circle is a square, but why is that? I've been racking my brain and the internet for solutions, but have found no logical explanations in relation to the arc degrees and angles. Please help. |
Marisa,
The opposite angles of a cyclic quadrilateral must add up to 180 degrees.
http://en.wikipedia.org/wiki/Cyclic_quadrilateral
What do you know about the opposite angles of a rhombus?
Chris
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