Answer:
Jamie will need 716 tiles.
Step-by-step explanation:
Jamie wants to put tiles on the walls and floor of his room.
Length of his room = 10 feet
Width of his room = 14 feet
Height of the room = 12 feet.
Area of the floor = Length × width
= 10 × 14 = 140 feet²
As the room is rectangular shape so area of wall on width side is more than the area on length side.
Area of the wall on length side = length × height
= 10 × 12 = 120 feet²
There are two walls of same length = 120 × 2 = 240 feet²
Area of wall on width side = 14 × 12 = 168 feet²
Area of two opposite walls of same width = 168 × 2 = 336 feet²
Total area where Jamie wants to put tiles = 140 + 240 + 336
= 716 feet²
Each tile is 1 foot long and 1 foot wide, Hence Jamie will need 716 tiles.