Answer
$$P=\frac{\pi}{2R}.$$
Work Step by Step
To solve the given equation for $P$, we multiply both sides by $2P$ and then divide both sides by $2R$ as follows
$$2PR= \frac{\pi}{2P}2P\Longrightarrow 2PR=\pi\Longrightarrow P=\frac{\pi}{2R}.$$
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
Published by
Brooks Cole
ISBN 10:
1285199197
ISBN 13:
978-1-28519-919-1
Chapter 6 - Section 6.7 - Formulas - Exercises - Page 255: 20
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