High School Challenge

Week Ending 2-27-00

Send Answer to: ucfcasio@pegasus.cc.ucf.edu

Congratulations to Alex Shim from Framingham High School in Framingham, MA. Alex wins the Casio CFX-9850G Color Graphing calculator.

What is Going On?

It appears as if when the above pieces are arranged one way, they give an area of 32 square units and the other way they give an area of 32.5 square units. We know that cannot be if the four pieces used are the same size and shape when they are used, which they are. What is wrong?

Please use the following format for your information when responding:

<LI> Your Name. Your ES, MS, or HS, Town, State (2 letter)
Your Grade

Problem answer


Use our On-Line Calculator to solve the problem.

Correct Solutions:

  1. Kady Gerry. Middleton HS, Middleton, WI
  2. Yu Jiang. Christchurch Boys' HS, Christchurch, New Zealand
  3. Gamalyel Go. St. James, Guelph, ON, Canada
  4. Maxim Rapoport. George Washington HS, Philadelphia, PA
  5. Jacob Cress. Milton Union HS, West Milton, OH
  6. Yana Malysheva. Urbana HS, Urbana, IL
  7. Alex Schwendner. Austin Area Homeschoolers, Austin, TX
  8. Sorin Ionescu. John Abott, Montreal, QB, Canada
  9. Daniel Parks. Mountain View HS, Vancouver, WA
  10. Maiyuran Arumugam. James Ruse AHS, Carlingford, NSW, Australia
  11. Lisa Gardner. Boyette Springs ES, Riverview, FL
  12. Kevin Chan. Seminole HS, Sanford, FL
  13. John Ahrens. Johnson MS, Melbourne, FL
  14. Jan Nordbotten. Cathedral School, Bergen, Norway
  15. Sibo Zhao. Amador Valley HS, Pleasanton, CA
  16. Changjiang Liu. Francis Lewis HS, Flushing, NY
  17. Mark Bicket. North HS, Edmond, OK
  18. Guy David. Ransom MS, Miami, FL
  19. Floyd Newberry. Central Mountain HS, Mill Hall, PA
  20. Victor Putra Lesmana. Canisius College, Jakarta, Indonesia
  21. Will So. SKH Lam Woo Memorial SS, Hong Kong
  22. Joni Salonen. Kuopion Lyseon Lukio, Kuopio, Finland
  23. Eric Lawson. Swanson ES, Omaha, NE
  24. Ariel Benson. Flatbush HS, Brooklyn, NY
  25. Adam Weaver. SC Governor's School, Hartsville, SC
  26. Gurlal Singh Brar. Granite Hills HS, El Cajon, CA
  27. Jason Juang. Sycamore JHS, Cincinnati, OH
  28. Mike Muszynski. Lake Brantley HS, Altamonte Springs, FL
  29. Larry Camarota. DeLand MS, DeLand, FL
  30. David Summerlot. Bishop Moore HS, Orlando, FL
  31. Jongmin Baek. Hyde JHS, Cupertino, CA
  32. Cory Fletcher. Lester B Pearson SS, Gloucester, ON, Canada
  33. Xi Wang. Kelvin HS, Winnipeg, MB, Canada
  34. Sean Kim. Pyoung-Chon HS, Seoul, Korea
  35. Leonard Anghelescu. Broadlands ES, Toronto, ON, Canada
  36. Pradeep Baliga. Central HS, Tuscaloosa, AL
  37. Raju Krishnamoorthy. Cupertino MS, Cupertino, CA
  38. Mike Shumski. Cardinal Brennan HS, Mahanoy Plane, PA
  39. Charles R Washington III. Oxford HS, Oxford, MS
  40. Chris Mann. James Ruse AHS, Carlingford, NSW, Australia
  41. Josephine Chan. Lowell HS, San Francisco, CA
  42. Bob Boon. Bayside MS, Milwaukee WI
  43. Andrew Evans. Mar Vista ES, Aptos, CA
  44. Tsingyi Sixseven. SKH Lam Woo SS, Hong Kong
  45. Yiming Yao. New Westminster SS, New Westminster, BC, Canada
  46. Hong Cheng. Fels HS, Philadelphia, PA
  47. Anton Malyshev. Anton's Home School, Urbana, IL
  48. Elena Udovina. Agnon MS, Beachwood, OH
  49. Joshua Powell. Marietta HS, Marietta, GA
  50. Josh Taylor. Pinelands Regional HS, Little Egg Harbor, NJ
  51. Justin Lam. College Park HS, Pleasant Hill, CA
  52. Asher Walkover. Rambam Mesivta, Lawrence, NY
  53. Velian Pandeliev. St Joseph's Catholic IS, Ottawa, ON, Canada
  54. Daniel Gee. Stone Valley MS, Alamo, CA
  55. Jeff Davidson. Blue Ridge HS, Blue Ridge, TX
  56. Daniel Keesing. Ridgewood HS, NJ
  57. Leonard Dantinne. Stephenson HS, Stephenson, MI
  58. Seth Timpano. Fergus HS, Lewistown, MT
  59. Grace Cheung. South Pasadena MS, South Pasadena, CA
  60. Wong Hoi Ko. Stewards Pooi Tun SS, Kowloon, Hong Kong
  61. Foy Sperring. Thornton Academy, Saco, ME
  62. Jessica Spare. St John JHS, St John, KS
  63. Angela Schnelle. Mount Notre Dame HS, Cincinnati, OH
  64. Britta Lundin. Astoria HS, Astoria, OR
  65. Farhaan Assar. Kilgour ES, Richmond, BC, Canada
  66. Alim Assar. Kilgour ES, Richmond, BC, Canada
  67. Tao Chen. Miller MS, San Jose, CA
  68. Sierra Hedberg. Montgomery MS, El Cajon, CA
  69. Irena Penev. Mathematical HS, Belgrade, Yugoslavia
  70. Andrey Mamontov. Reedsburg HS, Reedsburg, WI
  71. Jonathan George. Home Schooled, Elizabeth, CO
  72. Damien C. JL Stanford MS, Palo Alto, CA
  73. Jon Frost. Finn Hill JHS, Kirkland, WA
  74. Leon Lai On Ho. Wah Yan College, Hong Kong
  75. Koos van Zyl. Overkruin HS, Pretoria, South Africa
  76. Erin Harness. Upper Lake HS, Upper Lake, CA
  77. Kimi Parker. Madeira HS, Madeira, OH


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