1. The problem statement, all variables and given/known data A 35 mm camera has a lens with a 50 mm focal length. It is used to photograph an object 175 cm in height, such that the image is 30 mm high. (a) How far from the camera should the person stand? Answer is The person should stand 297 cm away from the camera. 2. Relevant equations 1/f=1/o+1/i m=i/o 3. The attempt at a solution 1/50=1/o+1/i m=30/175=i/o I really do not know how to relate hight of the person to distance to the camera .please help someone!How to get this answer?297cm?