Question: 8 feet by 12 feet equals how many square feet?
Answer: In the above figure, each wall is 12' long with an 8' ceiling. Multiply 12 x 8 = 96 square feet for each wall, then multiply 96 x 4 (since there are four walls with 96 square feet each)= 384 total square feet for the room. 25 sq. ft.