Thank you for looking at my question.
We're supposed to paint the walls of a room and ceiling twice (x2), the room is 15 ft long by 10 ft wide and 8 ft tall. The teacher is asking us to provide the total area in square feet.
The answer given is 550 sq ft (i imagine that includes the ceiling?)
To me area is length times width (15 * 10) * 2 (in this case). I'm not sure what to do with that 8. 15*10*8=1200 ft cubed? How does the fact that I have to paint the room twice factor into math??
How did the teacher arrive to that result?