Your question does not make sense. 100 yards is a measure of length, but square footage is a measure of area.
460
4,050 square feet.
299 square feet = 33.22 square yards
100 square meters = 120 square yards
Muliply the square yardage by 9 gives you square footage.
100 yards x 50 yards = 300 feet x 150 feet = 45,000 square feet
28,800 ft2
460
4,050 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.
299 square feet = 33.22 square yards
100 square meters = 119.6 square yards.
100 square meters = 119.6 square yards
100 square meters = 120 square yards
5,300 square yards (100 x 53).
10,000 square feet.
The answer depends on the measurement units used for "100 x 100". It should be clear, even to you, that the square footage of 100 inches x 100 inches will be different from 100 yards x 100 yards or 100 metres x 100 metres, etc.