Answer
A
Work Step by Step
We first identify the expression:
$$PX=PZ=15 \\ YR=ZR=17 \\ QY=XY$$
Thus:
$$ \left(15\right)\left(2\right)+\left(17\right)\left(2\right)+\left(2QY\right)=88 \\ 2QY+64=88\\ 2QY=24 \\ QY=12$$
Geometry: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281159
ISBN 13:
978-0-13328-115-6
Chapter 12 - Circles - 12-1 Tangent Lines - Got It? - Page 766: 5
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