Question 937342
I am painting the four walls and a ceiling of a room.  The room is 600cm long by 450cm wide and 300 cm high.  What is the area? 
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2 walls are 6 m by 3 m = 18*2 = 36 sq meters
2 walls are 4.5 by 3 m = 13.5*2 = 27 sq meters
The ceiling is 6 m by 4.5 m = 27 sq meters
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Add those.