The dimensions of the picture on a 35.0 mm color slide are x = 24.0 mm by y = 36.0 mm. an image of the slide is projected onto a screen 9.4 m from the projector lens with a lens of focal length 140 mm.
a) How far is the slide from the lens?
b) what are the dimensioons of the image on the screen in meters? x' and y'