Question

Measure the side of the red square on the dotted sheet. Draw here as many rectangles as possible using 12 such squares.
- How many rectangles could you make?

Answer 1

The side of the square is 1 centimetre.
Following figure shows the possible rectangles using 12 such squares.
There are 7 rectangles.
2 rectangles are of size $1\times 12$ centimetre.
1 rectangle is of size $2\times 6$ centimetre.
4 rectangles are of size $3\times 4$ centimetre
Hence, number of rectangles $=2+1+4=7$