# Dividing A Circle Into Thirds

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• posted on November 28, 2003, 9:10 pm
That will work, but it's too much work.
Get a plastic drafting triangle. Place it over the circle with the 90° corner on the circumference. Mark the points where the 2 adjacent sides cross the circumference. Connect these 2 points - this line is a diameter. Repeat the above to establish another diameter line. The 2 diameter lines will intersect at the center of the circle.
Art

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• posted on November 28, 2003, 11:33 pm

How about D + 1rch? It's not scientific, but it's close!
(No, that doesn't mean "rarified carbon hashmark".)
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• posted on November 29, 2003, 12:16 pm
lay your circle onto a piece of square stock like plywood with the edges flush with one side and the adjacent 90 degree side. Take a framing square and butt it to the opposite side scribe a line. measure from edge to line and divide by 2 and you have your radius. use this measurement to divide your square into 4ths. 2x2 smaller squares. use center point and a compass and draw a smaller circle in center. draw a straight line where circle intersects lines, measure and divide these lines into 3rds. from center point to each third point of line is 1/12th of your circle. 4 of these =1/3.
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"If you are arrogant, who's going to care if you're the best?"

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• posted on November 29, 2003, 8:03 pm
On Fri, 28 Nov 2003 10:02:09 -0500, "Rumpty"

Draw a circle with a compass. Set the compass on the edge of the circle and draw an arc to cross the circle. Reset the compass at one of the intersections and repeat. You'll get 6 equal sections of the circle. Easy.