Take two toothpicks that create an outside corner. Cross them like a + inside one of the remaining boxes. Count the new four smaller boxes inside it as 4, the one they are formed in as 5, and the two untouched boxes as 6 and 7. (The trick is to remember to count the larger box the 4 are formed in.)
Fuor toothpicks from 16 leave 12 which, by coincidence (?) is exactly enough for four equilateral triangles!
If they are 1 x 1 squares there would be 144 in a 12 x 12 grid.
608
6 triangles is 18 and 3 squares is 12 18 +12 ------- 30
A square has 4 sides therefore 3 squares from 12 toothpicks will simply be three unconnected squares
You make 3-D! Look... 6 squares in one cube and you can do that with toothpicks too!
7 squares is forty nine so you remove two toothpicks to make the digits 49
bend 2 toothpicks at 90 degree angles and put them cornor to cornor
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)
Is this question supposed to have 12 toothpicks to make 4 squares and then move 3 toothpicks to make 3 equal sized squares? Answer depends on the restrictions. Just move 3 sticks from any square to form a straight vertical or horizontal line up of squares is one option if there is no restrictions other than the three resulting squares are equal sizes.
Use them to form the edges of a cube.
12
You can make three rectangles. Remember that a square can also be a rectangle.5x14x23x3
You can arrange them into a cube to make the 6 faces of the cube, and the 12 toothpicks making up the 12 edges of the cube.
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.
Take two toothpicks that create an outside corner. Cross them like a + inside one of the remaining boxes. Count the new four smaller boxes inside it as 4, the one they are formed in as 5, and the two untouched boxes as 6 and 7. (The trick is to remember to count the larger box the 4 are formed in.)