The Oakland/ East Bay Math Circle (OEBMC) is a weekly after-school program centered on mathematical exploration and discovery and presented for middle and high school students and their teachers.
Starting again September 15, 2011, OEB Math Circle courses will meet on Thursdays, 4:00-5:00 PM at Patten University and 4:30-5:30 PM at Laney College,
providing the opportunity for students to learn advanced mathematics and teachers to receive professional development and math enrichment.
Read More about the Oakland/East Bay
Math Circle Mission and Program
Newsflash!
OEBMC will begin again on Thursday, January 12, 2012!
Click Here for the latest OEBMC News! (.pdf)
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Around the outside of a 4 by 4 square, construct four semicircles (as shown in the figure) with the four sides of the square as
their diameters. Another square, ABCD, has its sides parallel
to the corresponding sides of the original square, and each side
of ABCD is tangent to one of the semicircles. What is the area
of the square ABCD?
- from AJHSME 1994
