Q:

A room is 30 feet long, 25 feet wide, and 10 feet tall. If Mickey paints the walls and the ceiling, how much surface are will he cover? A.2,600 ftB.2,350 ftC.2,300 ftD. 1,850 ft

Accepted Solution

A:
Mickey only paints the walls and the ceiling of the room. Therefore, the surface area he will cover is 1850 ft². How to calculate surface areaThe room is a rectangular prism. Surface area of a rectangular prism = 2(wl + hl + hw)wherel  = length = 30 ftw = width = 25 fth = height = 10 ftHe only paint the walls and the ceiling . Recall the walls have 4 surface and the ceiling only have a single surface. Therefore,Surface area of the walls = 2(hl) + 2(hw) = 2(10(30)) + 2(10(25)) = 600 + 500 = 1100 ft²Surface area of the celling = lw = 30 × 25 = 750 ft²Surface area needed to be covered = 750 + 1100 = 1850 ft² learn more on surface area here: