Geometry: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281159
ISBN 13: 978-0-13328-115-6

Chapter 10 - Area - 10-1 Areas of Parallelograms and Triangles - Got It? - Page 617: 2


Answer: $A=135cm^2$

Work Step by Step

11. We are already given that $h$ will represent the height corresponding to the $18 cm$ base. We also know that one of the parallelogram's sides equals $15cm$. We are also informed that the height of the triangle, traced outside of the shaded region of the parallelogram, corresponds to the $15cm$ hypotenuse, which equals $9cm$. Given all the information, we just need to figure out the area of the parallelogram. 12. The formula of the area of a parallelogram is: $A=bh$. We are going to plug in the given base and height: $A=15 * 9$ $A=135$ 13. The area of the parallelogram is $135cm^2$
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