To split a circle into 11 equal parts using 4 lines, you would first draw two diameters perpendicular to each other, creating four equal parts. Next, draw a line from the center of the circle to a point on the circumference, dividing each of the four sections in half, resulting in eight equal parts. Finally, draw two more lines from the center to points on the circumference, dividing each of the eight sections in half again, resulting in a total of 11 equal parts.
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.
If you have a protractor: Draw a line from the center of the circle to the outside (radius), then measure 60 degrees and draw another line. If you have a compass: Draw a circle using the compass, then, using your compass, place the compass needle on the edge of the circle, draw another circle (KEEP THE RADIUS THE SAME). Your two circles should have two intersection points. Place the needle on one of the intersection points and repeat the process. I suggest you look at:
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.