12 feet X 21 feet / 9 sq feet/sq yard = 28 sq yards
Assuming you mean 11 feet by 17 feet, a sq yard is 3 x 3 = 9 sq feet 11 x 17/9 = 20.8 sq yards required, or about 21 sq yards
2178 sqare feet = 726 square yards * * * * * NO! 9 sq ft = 1 sq yard so 2178 sq feet = 2178/9 sq yards = 242 sq yards.
3 ft = 1 yard, 9 sq feet = 1 sq yard 3900 sq feet = 3900 / 9 sq yards = 433 1/3 sq yards
430 sq feet = 430/9 sq yards = 47.77... sq yards.
21 square yards = 189 square feet.
12 feet X 21 feet / 9 sq feet/sq yard = 28 sq yards
12' x 21' (252 square feet) = 28 sq. yards.
Assuming you mean 11 feet by 17 feet, a sq yard is 3 x 3 = 9 sq feet 11 x 17/9 = 20.8 sq yards required, or about 21 sq yards
2178 sqare feet = 726 square yards * * * * * NO! 9 sq ft = 1 sq yard so 2178 sq feet = 2178/9 sq yards = 242 sq yards.
9 SQ feet = 1 SQ yard. 840 SQ feet = 931/3 SQ yards
1 sq yard = 9 sq feet 125 sq yards = 125 x 9 sq feet =1125 sq feet
400 sq yards.
There are 41.78 square yards in 376 square feet. To convert square feet to square yards, you divide by 9.
3 ft = 1 yard, 9 sq feet = 1 sq yard 3900 sq feet = 3900 / 9 sq yards = 433 1/3 sq yards
430 sq feet = 430/9 sq yards = 47.77... sq yards.
129 sq. feet = 14.33 sq. yards