Answer
12.1
Work Step by Step
The diagram shows you the adjacent and opposite side lengths are 39$^{\circ}$
tan(39)=$\frac{x}{15}$
15(tan(39$^{\circ}$)=x
Use a calculator to find x.
x=12.1
Geometry: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281159
ISBN 13:
978-0-13328-115-6
Chapter 8 - Right Triangles and Trigonometry - 8-3 Trigonometry - Lesson Check - Page 510: 7
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