A right pyramid with a square base is inscribed in a sphere of radius R,all the five vertices of the pyramid being in contact with the sphere.If the height of the pyramid is x,show that the four vertices of the base of the pyramid lie on a circle of radius r, where r^2 = 2Rx - x^2 .(adsbygoogle = window.adsbygoogle || []).push({});

I need someone help to me draw a diagram of this question so that I can understand better what the question want.Thanks for anybody that help me to draw a simple diagram for me and thanks for anybody that spend some time on this question.

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# Question regarding differentiation

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