2007-03-16 09:38:59 · 5 answers · asked by mohammad m 1 in Science & Mathematics ➔ Engineering
This is an old trick, usually done with 6 matches.
The first 3 matches form an equilateral triangle.
The other three matches start at each corner, and meet above the triangle, forming a 3-D tetrahedron.
(4 sides, each an equilateral triangle)
2007-03-16 15:47:03 · answer #1 · answered by Alan 6 · 1⤊ 0⤋
draw a square / rectangle with 4 lines, then put the other 2 inside the square like an "X" ?
2007-03-16 16:42:29 · answer #2 · answered by Crayon 2 · 0⤊ 1⤋
Draw a square with two diagonals
2007-03-16 16:42:07 · answer #3 · answered by Norrie 7 · 1⤊ 1⤋
Construct a tetrahedron.
2007-03-16 16:43:25 · answer #4 · answered by Northstar 7 · 1⤊ 0⤋
Draw a square and two diagonals inside it..... right?
2007-03-16 16:42:39 · answer #5 · answered by piri82 3 · 0⤊ 1⤋