The floor of a room is a square of side 6 m. Its height is 4 m. The volume of the room is

140 m³ 142 m³ 144 m³ 145 m³

144 m³

Room is of cuboidal shape. Thus, the volume of cuboid is: length x breadth x heights Volume = 6 × 6 × 4 = 144 m³.