5 m2 by 7.5 m10 m3 m2 by 2 m2 by 3 m3 by 3 m2 by 3 m2 by 3 m2 by 3 m3 by 3 m2 by 3 m2 by 3 m3 by 3 m2 by 3 m2 by 3 m2 by 3 m3 by 3 m2 by 3 m2 by 3 m2 by 3 m2 by 3 m2 by 3 m2 by 3 m