where represents the length and represents the width.
The area of a rectangle is given by:
where represents the length and represents the width.
You can assign the term "base" to represent length and "height" to represent width if you like. Or you can do it the other way around -- doesn't make any difference. So just plug in the given numbers and do the indicated arithmetic. Remember, perimeter values are expressed in linear units, while area values are expressed in square units.
John
My calculator said it, I believe it, that settles it