The floor and ceiling are each 13 and 1/3rd square yards.
In order to calculate the area of the walls, we'd have to know the height of the ceiling.
That's a total of 20 square yards.
15x14=210 square feet 210/9=23 1/3 square yards
A 12' x 9' room has an area of 12 square yards.
(9-ft x 12-ft) = 108 square feet / (9 square feet per square yard) = 12 square yards======================Another method:9-ft = 3 yards12-ft = 4 yards(3yd x 4yd) = 12 square yards
20 square yards
40 square yards
742 square yards
A 20' by 14' room measures 31.1 square yards.
Total square yards: 18.78
16 square yards.
252 square feet = 252/9 square yards = 28 square yards
64 yards
1.53 square yards.
35 square yards
264 square yards
nine square yards.
If it is a 17 yard by 9 yard room then 153 square yards!