Answer
$TF = 90*\sqrt {2} ft$
Work Step by Step
As you see we have a right triangle with two legs $90ft$ and the hypotenuse is the distance from the third base to first base. Then $TF = \sqrt {90^2 + 90^2} = \sqrt {2*90^2} = 90*\sqrt {2} ft$
Basic College Mathematics (10th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
Published by
Pearson
ISBN 10:
0134467795
ISBN 13:
978-0-13446-779-5
Chapter 8 - Geometry - 8.8 Pythagorean Theorem - 8.8 Exercises - Page 594: 49
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