# Problem of the Week Problem C Dollhouse

The first level of a dollhouse is in the shape of a rectangle. Its floor plan is shown in the following diagram.

Both the mudroom and the kitchen are square with areas of $$400\text{ cm}^2$$ and $$2500\text{ cm}^2$$, respectively. The living room is rectangular with an area of $$3000\text{ cm}^2$$.

Determine the area of the rectangular storage room.

Themes: Geometry & Measurement, Number Sense