2,098.96 square feet.
15 meters square is about 161.46 feet square.
15 square meters is 161.46 square feet.
15 (square meters) = 161.458656 square feet.
225 square feet = ~21 (20.903184) square meters.
A 15' x 15' room has 225 square feet, and 225 square feet is about 20.903184 square meters. By inspection, that's just a bit short of 21 square meters.
18.12 square meters.
15' x 8' is 120 square feet which equates to about 11.15(11.1483648) square meters.
161.459 square feet.
29.26 square meters.
About 23.7 square meters. (23.6902752).
15 square meters is 161.46 square feet.