To determine the length of the parallelogram's shorter side in Tiyane’s scale drawing, we need to have the ratio or scale of the drawing compared to the actual dimensions. In the absence of an image or further details pertaining to the dimensions of the original parallelogram, we cannot calculate the exact length of the shorter side.
If you know the scale or the dimensions of the original parallelogram, please provide that information to calculate the shorter side accurately. Alternatively, if the options given (7.5 inches, 2.5 inches, 0.4 inches, 60 inches) are based on a specific scale ratio, please clarify that as well.