If the square footage refers to floor area, yes.
1200
Square footage of a building usually refers to the total square footage of floor area.
270 square feet
width times length
The square footage of a 25,000 gallon pool depends on the shape of the pool. To determine the square footage multiply the floor width with the floor length. Multiply the length by the height of the walls for each wall. Add all these numbers together to get the square footage.
72 square feet
Multiply width times length.
Measure the area on the plan and multiply by the square of the scale.
18000
The square footage of the room is determined by the floor dimensions. So if you have a 12 x 20 room the square footage is 240 square feet.
Measure the height of the wall from floor to ceiling. Measure the width of the wall. Multiply height x width = square footage. For square yards, divide the square footage by 9.