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 Around the ring (Posted on 2010-12-20)
Take the line segment whose endpoints are the points (1,0) and (-1,0) and a point of rotation (x,y).

If the segment is rotated all the way around the point it will trace out an annulus.

Find simplified formula for the area of this annulus in terms of x and y.

Redo this problem for a rectangle with corners at (1,1), (-1,1), (-1,-1), and (1,-1).

 No Solution Yet Submitted by Jer Rating: 3.0000 (1 votes)

 Subject Author Date Part 1 Brian Smith 2016-02-29 12:58:41 re(3): part 1 not finished. broll 2010-12-22 04:14:05 re(2): part 1 not finished. Jer 2010-12-21 15:08:01 re: part 1 not finished. broll 2010-12-21 11:52:12 re: part 1 not finished. Charlie 2010-12-21 11:34:39 part 1 not finished. Jer 2010-12-21 10:15:11 re(2): part 1 spoiler -- whoops broll 2010-12-21 06:44:49 re: part 1 spoiler -- whoops Charlie 2010-12-20 16:54:03 part 1 spoiler Charlie 2010-12-20 16:47:39

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