#### Answer

$\angle B$

#### Work Step by Step

We can see that both $\triangle CAB$ and $\triangle RPB$ share $\angle B$.

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Published by
Prentice Hall

ISBN 10:
0133281159

ISBN 13:
978-0-13328-115-6

$\angle B$

We can see that both $\triangle CAB$ and $\triangle RPB$ share $\angle B$.

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