Divide a circular disk into seven parts with a straightedge and compass such that each part has the same area and perimeter.
(In reply to
Solution by Bob)
http://www.mohawk.mtrsd.k12.ma.us/site/dept/math/jgalvagni/sevenths.bmp
To find the center of a circle, contruct two chords and their perpendicular bisectors. They intersect at the center.
You only need to divide your extension line into 6 pieces, not 7 (13 if you don't want to find the midpoint afterward)
Jer
(Nice solution. I was stumped once I remembered you can't construct a regular heptagon.)

Posted by Jer
on 20041209 18:13:58 