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In the figure below,XY,YZ and XZ are diameters of circles.
![figarea23520201304.JPG](/courses/uploads/figarea23520201304.JPG)
What is the area of shaded part? (Take #pi=22/7#)
A. 462#cm^2#
B. 385#cm^2#
C. 308#cm^2#
D. 231#cm^2#