posted by Hanu on .
A sheet music cabinet is 1.4m wide, 45 cm deep and 1.5m high. What is the surface area of the cabinet, not including the open front? Express your answer to the nearest tenth of a square metre.
First, make sure to convert all of your units to meters. Then, sum the sides (so 2*1.4*1.5, two because there are two of the same side, and then do the same for the other two types of sides.