Boards of oak 0.5 cm thick, 1 m long, and 0.25 m wide are used as flooring for a 10 m x 10 m area. If the floor was laid at a moisture content of 25% and the expected moisture could be as high as 45%, determine the dimensional change in the floor parallel to and perpendicular to the length of the boards. The boards were cut from logs with a tangentiallongitudinal cut.