I need help drawing a ray diagram which shows the arrangements in which an image that is the same size as the original was created (so when the image/light source was at 0 cm, lens (convex, +100mm F.L.) at 20 cm, and viewing screen at 40 cm, it allowed us to create the image on the viewing screen the exact same as the image from the light source both with a height of 4.2 cm and diameter of 4.2 cm)

I also need help drawing a ray diagram which shows what arrangements would then produce an image that is as large as possible (estimation).

Thank you in advance for your help.