Answer
About 5.2 inches
Work Step by Step
The medians of an equilateral triangle split it into six 30 60 90 triangles with a radius for a hypotenuse and an apothem for a short leg.
s=2(a$\sqrt 3$)
s=2(1.5$\sqrt 3$)
s=3$\sqrt 3$$\approx$5.2
Elementary Geometry for College Students (7th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Cengage
ISBN 10:
978-1-337-61408-5
ISBN 13:
978-1-33761-408-5
Chapter 7 - Test - Page 349: 11b
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