#### Answer

16

#### Work Step by Step

To find better estimate of the area of the figure. by using average of the results in parts (a) and (b)
result of (1) = 12
result of (2) = 20
Average = $\frac{(1)+(2)}{2}$ = $\frac{12+20}{2}$ = 16

Published by
Cengage

ISBN 10:
978-1-337-61408-5

ISBN 13:
978-1-33761-408-5

16

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