(a) Use the nrst theorem of Pappus to find the centroid of
Chapter 13, Problem 22(choose chapter or problem)
(a) Use the nrst theorem of Pappus to find the centroid of the first quadrant ponion oi the annular ring with boundary circles.rl +r'l - arl and tl *.r'l : b: (where0 < a < 6). (b) Show thal the limiting position of this centroid as b -> rr is the cenlroid of a quarter-circular arc. as we found in Probiem,l,l of Section 13.5.
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