Answer
525 $cm^{2}$
Work Step by Step
Find the area of the parallelogram.
A=bh
A=15(21)
A=315
Find the area of the triangle.
A=$\frac{1}{2}$bh
A=$\frac{1}{2}$(20)(21)
A=210
Add the two areas together
315+210=525
Geometry: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281159
ISBN 13:
978-0-13328-115-6
Chapter 10 - Area - 10-1 Areas of Parallelograms and Triangles - Practice and Problem-Solving Exercises - Page 621: 42
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