<PRE><B>Question 1013257</B>
1. what is the area and circumference of the circle?
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Find the radius.
AR*RC = BR*RD
4*4.5 = 3*(2r-3)
6r-9 = 18
radius = 9/2
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etc
2. what is the angle measure of crb if cod arc=100 and bsa arc=60?
Are those arc lengths?  The entire circumference is 9*pi.

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