Question

Jamie wants to put tiles on the walls and floor of his room (but not on the ceiling). The length of his room is 10 feet, the width is 14 feet, and the height is 12 feet. If each tile is 1 foot long and 1 foot wide, how many tiles will Jamie need?

856



716



348



168

Answer 1

Find surface area of all sides of his room. (base and the 4 walls.)
Base is 140 sq ft.
two walls are 168 sq ft each
the other two are 120 sq ft each.
336+240+140=716