The answer depends on the units of measurement used for the numbers in the question: feet, metres, centimetres, miles, etc.
24 square feet (4 x 6 = 24)
Multiply the lenght by the width. 6*4=24 feet square
16ft. 16ft.
If it is a square room then its perimeter is: 4*15 = 60 feet
4' * 4' = 16 sq feet.
215.3 square feet for this room.
24 square feet (4 x 6 = 24)
36 square feet (9 x 4 = 36)
32.
56
20
135.3 square feet.
If the dimensions are in feet then there are: 4 times 3 = 12 square feet
96 square feet
2.23 square meters.
Approximately 66.7 square feet.
Multiply the lenght by the width. 6*4=24 feet square