Answer
$YZ = a\sqrt 3$
Work Step by Step
By THEOREM 5.5.2 / (30-60-90 Theorem)
If XY=2a (given)
$YZ = a\sqrt 3$
Elementary Geometry for College Students (6th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Brooks Cole
ISBN 10:
9781285195698
ISBN 13:
978-1-28519-569-8
Chapter 5 - Section 5.5 - Special Right Triangles - Exercises - Page 247: 4b
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