Question

Estimate the magnification and focal length of the pitcher of water shown in the figure below. (Assume that the tree is about 42 ft tall and its inverted image is about 1 foot tall. Also assume that the tree is about 220 ft from the pitcher. Include the sign of the value in your answers.)
magnification
focal length
www.webassign.net/katzpse1/38-p-060.png