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? ___________


Each rectangle is made out of 12 equal squares, so all have the same area, but the length of the boundary will be different.
• Which of these rectangles has the longest perimeter?
• Which of these rectangles has the smallest perimeter?

Answer 1

The length of each side of red square is 1 cm.



• We can make 7 rectangles as shown in the figure.
• The rectangle 1 and rectangle 2 has the longest perimeter.
• The rectangle 3, rectangle 4, rectangle 5 and rectangle 6 has the smallest perimeter.