The length would be 4.8 inches or 0.4 ft and the width would be 3.36 inches or 0.28 ft.
This is found by multiplying the length and the width by the scale factor, 1/500:
200*1/500 = 200/500 = 2/5 =0.4 ft. Multiplying this by 12 for inches, 0.4(12) = 4.8 inches.
140*1/500 = 140/500 = 7/25 = 0.28 ft. Multiplying this by 12 for inches, 0.28(12) = 3.36 inches.
