You can make three rectangles. Remember that a square can also be a rectangle.5x14x23x3
2 rectangles. Put two toothpicks on 2 sides and one on the other side, and that uses 6 toothpicks and if you make another rectangle like that you make 2 rectangles.
I think 2
If one of the nine toothpicks is the common base of the two congruent isosceles triangles with sides formed by two toothpicks.
Depends on whether or not you have drunk coffee recently.
You can make three rectangles. Remember that a square can also be a rectangle.5x14x23x3
2 rectangles. Put two toothpicks on 2 sides and one on the other side, and that uses 6 toothpicks and if you make another rectangle like that you make 2 rectangles.
I think 2
1x5 2x4 3x3 a square, but a square IS a special type of rectangle, Also 4x2 and 5x1 which are the first two rotated through 90 degrees. Whether these should be considered the same or different depends on the context of the question.
You can make hot cinnamon toothpicks using boiling water instead of soaking in a jar by using regulated heat.
using toothpicks
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.
Using all 13 squares, and not counting different orientations, only one.
If one of the nine toothpicks is the common base of the two congruent isosceles triangles with sides formed by two toothpicks.
Depends on whether or not you have drunk coffee recently.
using four of them you make a square then using the remaining two make a criss cross in the middle of the square.
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..