Answer
$A=\frac{1}{2}s^{2}$
Work Step by Step
1. In this 45-45-90 triangle, the base and the height are both $s$.
2. Substitute and simplify.
$A=\frac{1}{2}bh$
$A=\frac{1}{2}\times s\times s$
$A=\frac{1}{2}s^{2}$
Trigonometry (11th Edition) Clone
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
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 2.1 Trigonometric Functions of Acute Angles - 2.1 Exercises - Page 56: 77
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