Question 327245
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*[tex \LARGE \ \ \ \ \ \ \ \ \ \ t\ =\ \frac{180}{r}]


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ t\ =\ \frac{280}{r\ +\ 20}]


So:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ \frac{280}{r\ +\ 20}\ =\ \frac{180}{r}]


Solve the proportion for *[tex \Large r]


John
*[tex \LARGE e^{i\pi} + 1 = 0]
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