A 19' x 15' room is 285 square feet or 26.477 square meters.
144
18..
! Square foot = 0.092903 square meters.
160 of them.
One square foot = 0.093 (0.09290304) square meters.
To cover this area you will need about 10.87 square meters of material.
1
144
144
18..
! Square foot = 0.092903 square meters.
160 of them.
About 33.44 square meters.
5.57 square meters.
1 square foot is 0.0929 square meters.
6
23.41 square meters.