In the diagram, DEFG is a square and ABCD is a rectangle. A straight line is drawn from A, passes through C and meets FG at H. The area of the shaded region is
Want a route through all this instead of an archive? The track
puts 2,604 problems in a working order, from Junior Challenge level to the IMO shortlist.
Source: CEMC, University of Waterloo,
licensed CC-BY-NC-4.0.
Statement reproduced verbatim; metadata (topic, difficulty) added by this project. Solutions are the publisher's, linked not copied.