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## Homework Statement

http://postimage.org/] [/PLAIN] [Broken]

free picture upload

**2. The attempt at a solution**

I want to go width times delta height. To do this I must describe width in terms of height.

Here they used the Pythagorean theorem which is weird to me because I don't see a nice triangle. Where h meets w the triangle extends outside of the circle. We divide w by 2 I guess to treat it as like a radius?

I guess my question is how do I describe width in terms of height in this context?

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