Answer to Question #253657 in Geometry for Shanxi

Question

An electric refrigerator is built in the form of a 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

length of refrigerator without freezing unit = 3ft

breadth of refrigerator without freezing unit = 2.6ft

height of refrigerator without freezing unit = 1.8ft

length of refrigerator with freezing unit = 3ft - 1.1ft = 1.9ft

breadth of refrigerator with freezing unit = 2.6ft - 0.8ft = 1.8ft

height of refrigerator with freezing unit = 1.8ft - 0.7ft = 1.1ft

Volume of the refrigerator = l × b × h

$\textsf{Volume }= 1.9ft × 1.8ft × 1.1ft= 3.8 ft^3$

$\therefore$ The capacity of the electric refrigerator is 3.8 cubic feet$.$