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# Rod Area

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### Challenge 1

**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.
### Challenge 2

**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?

Here is a printable sheet of the activity.

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Age 7 to 11

- Problem
- Teachers' Resources

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.

Example 1:

28 rods U shape Area of 39 square units

Example 2:

34 rods U shape Area of 57 square units

The following are not allowed as they are not U-shaped:

Can you find

How do you know you've got them all?

Here is a printable sheet of the activity.