#### Answer

18

#### 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) = 10
result of (2) = 26
Average = $\frac{ (1) + (2)}{2}$ = $\frac{10+26}{2}$ = 18

Published by
Cengage

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

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

18

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