Question 803107
A room has a rectangular prism shape. It is 8.5m long, 7m wide and 3m high. Find the amount of paint needed to paint the room (including the ceiling)if 200mL/ m2 of paint is required.
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Find the area
Area 2*(8.5*7 + 8.5*3 + 7*2) sq meters
Paint = 200*area ml
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Notice that this includes the floor.  Most people don't paint the floor.