In the figure, OA = r and OC = R. The sector COB is cut from the circle with center O. The ratio of the area of the sector removed from the whole circle to the area of the sector removed from the inner circle is
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babas97

03.07.2020

Mathematics

C- No Quincy should have used the trend line to find the corresponding x value when y=80

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i just did it

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In the figure, OA = r and OC = R. The sector COB is cut from the circle with center O. The ratio of the area of the sector removed from the whole circle to the area of the sector removed from the inner circle is .