GeometryDifficulty 3.0AMC 10/12Find the answerUnited Kingdom
Let M and N be the midpoints of PQ and RS respectively in the rectangle PQRS. Let O be the centre of the rectangle MQRN. What fraction of the rectangle PQRS is shaded?
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.