11. A room in the shape of a rectangular prism measuring 3.5 m wide by 4.2 m long by 2.4 m high is to be painted. All surfaces except the floor are to be painted. How many square metres of surface are to be painted, rounded to one decimal place?

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11. A room in the shape of a rectangular prism measuring 3.5 m wide by 4.2 m long by 2.4
m high is to be painted. All surfaces except the floor are to be painted. How many square
metres of surface are to be painted, rounded to one decimal place?
Transcribed Image Text:11. A room in the shape of a rectangular prism measuring 3.5 m wide by 4.2 m long by 2.4 m high is to be painted. All surfaces except the floor are to be painted. How many square metres of surface are to be painted, rounded to one decimal place?
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