Question

Hannah is setting up chairs for the class play. The room has 20 chairs. What are the different ways she can arrange the chairs in a rectangle?

Answer 1

Have them 4 by 5.

Explanation:

If you she but 5 chairs in a row, then 3 on the side of the chairs. That would create a backward "L" type of shape.

For example, (The "o" is a chair)

OOOOO

O

O

O

As you see the the top are the 5 chairs, then side are are the 4 chairs.

Then, you will do the exact same thing but on the opposite side.

Here is the next example.

OOOOOO

O O

O O

O O

OOOOOO

Basically, arranging the chairs 4x5, it would make a rectangle.