There is a machine part that is 1.5mm long and 6cm long in the figure. The scale of this figure is ()

There is a machine part that is 1.5mm long and 6cm long in the figure. The scale of this figure is ()

1 cm = 10 mm
60÷1.5=40
So there is a machine part that is 1.5mm long and 6cm long in the drawing. The scale of this drawing is (40:1)
Hope to help you