Here's the link with the picture:
http://mathforum.org/library/drmath/view/57858.html
The trick is to have one x over the other, such that the intersect point of the second x is above the intersect point of the first x. Do his right, and you'll have what looks like a Star Trek emblem in the middle, comprised of three sections. It will be surrounded by eight other sections.
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have have to divide them
To divide a rectangle into 7 parts using 3 lines: Use 2 lines to draw two diagonals. Use the third line to draw a parallel line to any of the sides but not passing through the centre. This will create 7 parts in the rectangle.
If a circle is comprised of 360 degrees, then each of the five sections will encompass 72 degrees. From an arbitrary radius, using a protractor, measure 72 degrees, then continue around the circle.
Using a protractor divide it into three parts, each of 120 degrees. Shade two of them
Draw two diameter lines, then draw a circle inside the circle.
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You can cut a round cake into eight parts with three cuts, but you can't cut a circle into eight parts with three straight lines.
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You can't. However, you can divide it into seven, like so: Make the lines make a triangle in the middle of the circle, rather than making them meet at the centre.
Measure using a protractor and then split it every 40degrees. DoNe
You cant its been proven way back in the 18 hundreds
Infinite amount of times. Its just a matter of how accurate you can draw the dividing lines.
you need to fold the circle in half first, then cut it into 6, then unfold and draw a line down the folded area
Draw two diameters perpendicular to each other. Draw a smaller circle with the same centre such that the radius of the inner circle is 'r' and the radius of the outer circle is 'r√2.' [Or, the radius of the outer circle is R and the radius of the inner circle is R/√2.]
a)Draw a line thru the center intersecting 2 points on either sides of the circle b)Using radius of the same circle, draw 2 arcs in both intersecting points. Along with the straight line, this will cut out 4 sectors, with the rest of the circle sum to get for the 5th portion.
The circle had infinite lines of symmetry.