The drawing shows 2 parts on the same scale. The length of the first part is actually 0.4 cm

The drawing shows 2 parts on the same scale. The length of the first part is actually 0.4 cm, and in the drawing it is 4.8 cm. What is the actual length of the second part if its image in the drawing is 3.6 cm long?

1) We find out the scale of the image of the parts in the drawing: M = 4.8 / 0.4 = 12, the image in the drawing is enlarged 12 times;

2) The length of the second part will be L2 = 3.6 / 12 = 0.3 cm.;

Total: L2 = 0.3 cm.