## Basic College Mathematics (10th Edition)

Published by Pearson

# Chapter 9 - Basic Algebra - 9.5 Evaluating Expressions and Formulas - 9.5 Exercises - Page 662: 35

#### Answer

A = $\frac{45}{2}$ $ft^{2}$ or 22$\frac{1}{2}$ $ft^{2}$

#### Work Step by Step

A = $\frac{1}{2}$bh b =15 ft, h = 3 ft In this formula, b is the length of the base of the triangle and h is the height of the triangle. What is the area if b is 15 ft and h is 3 ft? A = $\frac{1}{2}$bh Evaluate the formula by replacing b with 15 ft and h with 3 ft. A = $\frac{1}{2}$ * 15 ft * 3 ft = $\frac{45}{2}$ $ft^{2}$ Convert it into mixed fraction 22$\frac{1}{2}$ $ft^{2}$ The area of the triangle is $\frac{45}{2}$ $ft^{2}$ or 22$\frac{1}{2}$ $ft^{2}$

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