To connect 4 dots with 3 lines, you can use a geometric technique called a "triangle paradox." Start by drawing a triangle connecting three of the dots. Then, draw a line from the remaining dot to the midpoint of one of the triangle's sides. Finally, draw a line connecting the midpoint of another side of the triangle to the remaining dot. This will create a figure that connects all 4 dots with only 3 lines.
To connect 9 dots with 4 lines, you must think outside the box. The key is to draw lines that extend beyond the boundaries of the dots. Start by drawing a line that goes through the first three dots in an L shape, then continue the line outside the dots to connect the remaining dots. This unconventional approach allows you to connect all 9 dots with just 4 lines.
Go outside the box. The 45 degree angles pick up the dots below the corners, but you have to extend the other lines beyond the figure formed by the dots.
Put the dots in a general square outline. But make one side have 4 dots and the others have 3. Then go around the outline of the square.
To separate 10 dots with 4 lines, you can create a square with 4 dots at the corners and one dot in the center. This arrangement allows each line to intersect with at least 2 dots, effectively separating all 10 dots.
refer http://wiki.answers.com/Q/How_do_you_make_10_dots_on_5_lines_with_only_4_dots
a star drawn with five lines will give you 10 dots on 5 lines with only 4 dots on each line. (or) simply draw a pentagon and put a cap ( a inverted 'V') on all sides.
See the related link, "Solution" below.
You start by drawing a circle then draw 3+ dots on the circled edge, next connect all the dots with each other but don't go over the same line twice. for a 4 dotted circle you should end up with 6 lines altogether and with 5 you should have 10 lines altogether also 6-15 7=21 10=45 11=55 12=66
Write down 4 rows of 3 dots or 3 rows of 4 dots.
If this is the one where the dots are in a square 3 x 3, and every dot must be connected by a straight line to every other dot, I do not think it can be done.
Write down 4 rows of 3 dots or 3 rows of 4 dots.
Write down 4 rows of 3 dots or 3 rows of 4 dots.