Question

Leora wants to paint the nursery on her house. The nursery is an 8-by-13-foot rectangle, and the ceiling is 9 feet tall. There is a 3-by-6.5-foot door on one wall, a 3-by-6.5 foot closet door on another wall, and one 2-by 1.5-foot window on the third wall. The fourth wall has no doors or windows. If she will only paint the four walls and not the ceiling or doors, how many square feet will she need to paint

Answer 1

336 ft²

Explanation:

The rectangle is 13 ft long and 8 width that means we have two walls 8* 9 and two walls 13*9

Total walls area is

2*8*9 + 2*13*9 = 144 + 234 = 378 ft²

then we subtrac , areas of door, closet and windows

3 * 6.5 = 19,5 ft²

3 * 6,5 = 19,5 ft²

2 * 1,5 = 3 ft²

42 ft²

Then area to paint 378 - 42 = 336 ft²