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A wooden log is encased in a wall. If we cut part of the wall away to a depth of 1 inch...
A rifle ball is fired through a three-inch plank, the resistance of which causes an unknown constant retardation of its velocity.
If an arc of 45 degrees on one circumference is equal to an arc of 60 degrees on another circle, what is the ratio of the areas of the circle?
A woodcutter starts to fell a tree 4 feet in diameter, and cuts half way through. One face of the cut is horizontal, and the other face is inclined to the horizontal at an angle of 45 degrees. Find the volume of the wood cut out.
A general formed his men into a square, that is, an equal number in rank and file, and he found that he had an excess of 59 men.
The sum of two numbers is 10 and their product is 40. What are the numbers?
A method for extracting square roots used in Italy through the 18th century was introduced in a manuscript by the 12th century mathematician al-Hassar. Appendix: When Was Fermat Born? (Not in 1601 ...)
Given the cats eye as shown. Let the radius of the eye be given by R. What is the area of the pupil?
We sadly announce the untimely death of one of Convergence's editorial board members.
An official asks a woman why she has so many bowls to wash. The woman explains that she had dinner guests who ate meat, rice, and soup. Judging by the number of bowls, how many guests were there?