College Algebra (10th Edition)

Published by Pearson
ISBN 10: 0321979478
ISBN 13: 978-0-32197-947-6

Chapter R - Section R.3 - Geometry Essentials - R.3 Assess Your Understanding: 30

Answer

$18$ square centimeters

Work Step by Step

RECALL: The area $A$ of a triangle can be found using the formula: $A=\frac{1}{2}bh$ where b = base h = height The given triangle has: base= 4 centimeters height = 9 centimeters Use the formula and the given measurements above to obtain: $A= \frac{1}{2}bh \\A=\frac{1}{2}(4)(9) \\A=\frac{36}{2} \\A=18$ Thus, the area of the triangle is $18$ square centimeters.
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