
Concept explainers
Approximating Area Consider the circle
(a) Find the area of the circle.
(b) Complete the table for the areas A of the sectors of the circle between
|
0.2 | 0.4 | 0.6 | 0.8 | 1.0 | 1.2 | 1.4 |
A |
(c) Use the table in part (b) to approximate the values of
(d)Use a graphing utility to approximate, to two decimal places, the angles
(e) Do the results of part (d) depend on the radius of the circle? Explain.

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