You can make 5 triangles out of 9 toothpicks. With 6 toothpicks, make a large triangle with 2 toothpicks for each side. Now, take individual toothpicks, and make a smaller triangle inside the larger one by joining the midpoints of the sides of the previous triangle. (The vertices of the smaller triangle are the midpoints of the sides of the larger one).
bend 2 toothpicks at 90 degree angles and put them cornor to cornor
5 or 6 Depending on what shape you are thinking of
A hexagon.
You can't.
Make a two by two grid with six toothpicks, and then place the other two toothpicks at a 45 degree angle on the corner of two of the squares.
If one of the nine toothpicks is the common base of the two congruent isosceles triangles with sides formed by two toothpicks.
You arrange 12 toothpicks into a large square, subdivided into four squares : 2 toothpicks on each side and four more, one each from the middle of the sides to the center of the large square. Now you have four (small) squares. Take away 2 adjacent toothpicks from the ones in the center, and you have 2 squares : one remaining small one and the large one that has the small one inside it. (see related link)
You can make 5 triangles out of 9 toothpicks. With 6 toothpicks, make a large triangle with 2 toothpicks for each side. Now, take individual toothpicks, and make a smaller triangle inside the larger one by joining the midpoints of the sides of the previous triangle. (The vertices of the smaller triangle are the midpoints of the sides of the larger one).
bend 2 toothpicks at 90 degree angles and put them cornor to cornor
5 or 6 Depending on what shape you are thinking of
Well, honey, with 2 squares and 2 triangles, you can make a lovely little house shape. Just slap those squares together for the base, and plop those triangles on top for the roof. Voila! You've got yourself a cute little geometric abode.
A rectangle.. If you combine the triangles to make another square and then place all the squares in a row it makes a rectangle. you can also make a trapezium, if you place the 2 squares next to each other and then the triangles beside them...
Start with a 2x2 square (that uses 8 toothpicks) Use the other two to make a 1x1 square in one of the corners of the big one..
See the link under related links below that says "8 Lines 2 Squares 4 Triangles"
no its an emphatic statement all squares can be cut in half to make 2 congruent isosceles right triangles is perhaps as general a statement as is possible
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