5087104
9780883855539
The 99 points of intersection presented here were collected during a year-long search for surprising concurrence of lines. For each example we find compelling evidence for the sometimes startling fact that in a geometric figure three straight lines, or sometimes circles, pass through one and the same point.Walser, Hans is the author of '99 Points of Intersection Examples-Pictures-Proofs', published 2006 under ISBN 9780883855539 and ISBN 0883855534.
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