For this task, imagine using a number of rods, each with a length of 1 unit.
You will use the rods to create a letter U shape which is symmetrical.
28 rods U shape Area of 39 square units
34 rods U shape Area of 57 square units
The following are not allowed as they are not U-shaped:
Using 20 rods each time, find one U shape which has an area that is an even number of square units and one which has an area that is an odd number of square units.
Using any whole number of rods
find a U shape with an area of 14 square units.
Can you find all
the U shapes with an area of 14 square units?
How do you know you've got them all?
is a printable sheet of the activity.