High School Challenge

Week Ending 3-28-99

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

Congratulations to Ivan Gurdiev of Standley Lake High School in Denver, CO. Ivan wins the Casio CFX-9850G Color Graphing calculator.

Ten Wraps of Wire

You have a cylinder with an outside diameter of 3 cm and a height of 15 cm. Ten turns of wire are helically wrapped around the cylinder so the respective ends are at the top and bottom of a height segment drawn on the outside of the cylinder. How long is the wire to the nearest centimeter?

Correct Solutions:

  1. Bill Fay. Pioneer HS, Ann Arbor, MI
  2. Lisa Schechner. Manorhaven ES, Port Washington, NY
  3. Xingji Zheng, Abby Senior SS, Abbotsford, BC, Canada
  4. Jeffrey Mo. University ES, Calgary, AB, Canada
  5. Asher Walkover. Rambam Mesivta, Lawrence, NY
  6. Farhad Roueintan. Carson Graham SS, North Vancouver, BC, Canada
  7. Cyrus Harvesf. Stanton College Prep, Jacksonville, FL
  8. Doug Dukes. Newport Harbor HS. Newport Beach, CA
  9. Maurine Mayhew. Yamato MS, Yamato-Machi, Niigata, Japan
  10. Scott Vogelpohl. Northwest Rankin HS, Brandon, MS
  11. Andy Novocin. Stanton College Prep, Jacksonville, FL
  12. Henry Magana. Newport Harbor HS, Newport Beach, CA
  13. Daniel Yu. Randolph MS, Randolph, NJ
  14. Jan Nordbotten. Cathedral School, Bergen, Norway
  15. Ben Dahlum. Glenville-Emmons HS, Glenville, MN
  16. Josh Lee. Glenville-Emmons HS, Glenville, MN
  17. Neil Khare. Pembroke Hill, Kansas City, MO
  18. Paul Bach. Woodford County HS, Versailles, KY
  19. John Swigart. Newport Harbor HS, Newport Beach, CA
  20. Nathan Waldruff. Massena Central HS, Massena, NY
  21. Daniel Keesing. Ridgewood HS, Ridgewood, NJ
  22. Brent Bradley. Seymour MS, Seymour, IN
  23. Sammi Leung. Hugh McRobert HS, Richmond, BC, Canada
  24. Peter Lindgren. Farila Skola, Sweden
  25. Dina Berkovits. Bridgewater-Raritan HS, Bridgewater, NJ
  26. Eric Hoke. Wayland HS, Wayland, MA
  27. Natalia Sysoyeva. OSPU, Odessa, Ukraine
  28. Brittany Jones. Merritt Island HS, Merritt Island, FL
  29. Pradeep Baliga. Central HS, Tuscaloosa, AL
  30. Rohan Mathew. Sycamore JHS, Cincinnati, OH
  31. James Edelen. La Salle College HS, Wyndmoor, PA
  32. Becky Ellis. Newport Harbor HS, Newport Beach, CA
  33. Anat Paskin. Ort Bialik HS, Kiriat Bialik, Israel
  34. Laurel Maharaj. Rio Claro HS, Rio Claro, Trinidad & Tobago
  35. Leonardo Varejao. Sauk Centre HS, Sauk Centre, MN
  36. Ryan Williams. Corry MS, Corry, PA
  37. Mark Blease. Alvirne HS, Hudson, NH
  38. Mario Tingling. Merritt Island HS, Merritt Island, FL
  39. Andrew Burgan. New Cumberland ES, New Cumberland, OH
  40. Tyler Mussel, Bedwell ES, Bernardsville, NJ
  41. Nick Kempton. Central ES, Council Bluffs, IA
  42. Stephen Richardson. Baker MS, Mobile, AL
  43. Nima Ghamsari. Sycamore JHS, Cincinnati, OH
  44. Yvonne Lai. Diocesan Girls' School, Kowloon, Hong Kong
  45. Pandora Lai. Diocesan Girls' School, Kowloon, Hong Kong
  46. Roberto Rubio. I.B. Font Sant LLuis, Valencia, Spain
  47. Joe Bochenek. New Plymouth HS, New Plymouth, ID


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