I got this problem from Five Triangles mathematics. One group may have the solution, but the rest are still struggling. The group that may have the solution is now drawing this problem on GSP.

### Archives

- June 2013 (11)
- May 2013 (21)
- April 2013 (12)
- March 2013 (15)
- February 2013 (18)
- January 2013 (21)
- December 2012 (13)
- November 2012 (18)
- October 2012 (20)
- September 2012 (19)

### Tags

3-Act math task algebra area Barbies basketball BINGO Block game circles Dan Meyer Des-man designing buildings Desmos domain engineering week estimation exploding dots Five Triangles geometry graphing GSP James Tanton John Conway Legos MARS Mathalicious math game math teachers' circle parabola patterns penny pyramid percentages problem solving proportions PUNCHLINE Algebra Puzzles quadratic range ratios Roman mosaic similar triangles Steve Mashburn sub day surface area tethered dog problem volume workshop