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3. (9 points) A lED—foot—tail tree trunk has circular cross section at every height. The radius of
these cross—sections cannot he easily measured without chopping the tree clown, so the circum—
ference of the tree is measured at various heights. The following table shows the eireumferenoe
of the tree measured in feet above the ground. Height {feet} “-m we
Circumference {feet} manna 1 {a} (3 points} Use the left—hand Riemann sum to estimate the total volume of the tree trunk.
Be sure to explain where the elements of the Riemann sum some fi‘om. {b} (E points} Will your estimate from past {a} he an overestimate or an underestimate? Give
a reason for your answer.

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(a) 1 8 0 0 5 7 2 . 9 6 f t 3 (b) Overestimate. The... View the full answer

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