Trigonometry (11th Edition) Clone

Published by Pearson
ISBN 10: 978-0-13-421743-7
ISBN 13: 978-0-13421-743-7

Chapter 2 - Acute Angles and Right Triangles - Section 2.4 Solving Right Triangles - 2.4 Exercises - Page 79: 50


134.7 cm

Work Step by Step

1. Split an isosceles triangle into two equal right triangles, with angle $34^{\circ}22'$ (halved angle of the isosceles triangle ) and opposite side $92.1 cm$ (halved base of the isosceles triangle ) 2. To find x (adjacent) use definition of trig function tangent $\tan 34^{\circ} 22 ' = \frac{92.1}{x}$ $x\approx 134.7$ [4 significant figures as it is in a given side]
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