Question

An electric refrigerator is built in a form of rectangular parallelepiped. The inside dimensions are 3 ft. by 2.6 ft. by 1.8 ft. A freezing unit (1.1 ft. by 0.8 ft. by 0.7 ft.) subtracts from the storage room of the box. Find the capacity of the refrigerator.

Answer 1

The capacity of the refrigerator is the volume:

$$V=V_R-V_U,\\ V=3·2.6·1.8-1.1·0.8·0.7=13.4\text{ ft}^3.$$