techdirections May 2010 : Page 44digital fun How many squares are there in the circle below? If an angle of 7-1/2° was examined through a magnifying glass that has a 10X rating, what would be the maximum size which the original angle could be enlarged? Ashley’s brother Michael has one more brother than he has sisters. How many more broth- ers than sisters does Ashley have? A car climbs a mountain at 40 mph and goes down it at 160 mph. What is the average speed for the round trip? Can you form an equilateral triangle from the similar shapes at left? The lunch room is 12' wide and 30' long with a 12' ceiling. In the middle of one end wall, 1' above the floor, is a spider. A fly is in the middle of the opposite wall, 1' below the ceiling. What is the shortest path the spider can take to capture the fly? If a cinder block is placed on one side of a beam bal- ance and balances with a half pound weight and three quarters of an identical block, then what does the whole cinder block weigh? See answers on page 40. We will pay $25 for brainteasers, one-period challenges, and puzzles; $20 for cartoons; and $5 for jokes and humorous anecdotes used on this page. Preferable theme for all submissions is ap- plied science, technology, and technical education. Send contributions to susanne@techdirections.com or mail to “More Than Fun,” PO Box 8623, Ann Arbor, MI 48107-8623. 44 techdirections ◆ MAY 2010 Digital FunPublication List |
