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Suppose the area of an equilateral triangle be 600. The sides are required.
A ladder has 100 steps. On the first step sits 1 pigeon; on the second, 2; on the third, 3; and so on up to the hundredth. How many pigeons in all?
A biography of the geometer Donald Coxeter.
One military horse cannot pull a load of 40 dan; neither can 2 ordinary horses, nor can three inferior horses.
If a ladder, placed 8 ft. from the base of a building 40 ft. high, just reached the top, how far must it be placed from the base of the building that it may reach a point 10 ft. from the top?
After completing this assignment on Simon Stevin's treatment of decimal fractions in his 1585 De Thiende, the author's preservice mathematics teachers understood why our usual procedure for multiplying such fractions works.
In a given square, inscribe 4 equal circles so that...
The Ohio Section Short Course will consider the use of original sources in teaching mathematics.
Find the isoceles triangle of smallest area that circumscribes a circle of radius 1.
A wooden beam is stood vertically against a wall. The length of the beam is 30 units.