CPM Homework Help : MC2 Problem 2-112

Bianca is trying to find the area of this rectangle. She already measured one side as $10$ cm. Which other length(s) could she measure to use in her area calculation? Explain your reasoning.

Hint 1:

How do you find the area of a rectangle?

Hint 2:

If $10$ cm is the base of the rectangle, which lengths could be the height?
You might want to rotate your paper so that the placement of the rectangle is more familiar.

More Help:

The base and height must be perpendicular.