Problem Of The Week
The Problem Of The Week (POTW) is a contest designed to challenge your thinking abilities through interesting mathematical problems and puzzles. The contest is open to everyone: students of all majors, faculty, high school students and the general public.
A new problem will be posted to this page every Monday at 3pm. The solution to a problem will be posted on Monday at 3pm, exactly one week after the posting of the problem.
Solutions can be submitted in one of two ways:
- By email to: email@example.com in the form of a PDF file, a scanned document or a Word document.
- By dropping a hard copy at the Math/CS main office in Serra 133.
The day and time of submission are important in the scoring process (see scoring below). The deadline for submission is exactly one week after the posting of the problem.
The first 10 correct solutions will earn 10 points. The next 10 correct solutions will earn 7 points, and all subsequent correct solutions will earn 5 points. The n participants (n to be determined) with the highest scores at the end of the semester will be awarded a prize.
Week of March 10, 2014: What’s your angle?
The following parallelogram is formed from eight equilateral triangles. Let α be the angle made by the
segments AB and AD, and β the angle made by the segments BC and BD. Find the exact value of α + β.
(Source: “Math Horizons”, a publication of the MAA)
Name Institution Points Jesus Tonatiuh Otay Ranch HS 40 Amy Hwang USD 20 Kevin O'Connor USD 20 James Ruther USD 20 Ed Alexander USD 15