The circle with center O below has radius 4. Find the following.(a)Circumferenc

游客2024-01-12 56

问题 The circle with center O below has radius 4. Find the following.
(a)Circumference of the circle
(b)Length of arc ABC
(c)Area of the shaded region

[br]

选项

答案 8π/9

解析

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