Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)

Published by Pearson
ISBN 10: 0-32193-104-1
ISBN 13: 978-0-32193-104-7

Appendix A - Review - A.2 Geometry Essentials - A.2 Assess Your Understanding - Page A19: 2


$A=\frac{1}{2} bh$

Work Step by Step

For a triangle with base b and altitude h, a formula for the area A is $\frac{1}{2} bh$. In other words, the area is "one-half base times height/altitude".
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