Given a pendulum as shown. The height of the pendulum is two units and its horizontal width is 2 units. What is the area of the pendulum?

Individual problems from throughout mathematics history, as well as articles that include problem sets for students.

I wish to find three numbers of such nature that the first and the second with 1/2 of the third makes 20...

A rifle ball is fired through a three-inch plank, the resistance of which causes an unknown constant retardation of its velocity.

As for a square piece of land that amounts to 100 square cubits, if it is said to you, "Cause it to make a piece of land that amounts to 100 square cubits that is round," what is the required diameter?

The authors recount the 'great tale' of Napier's and Burgi's parallel development of logarithms and urge you to use it in class.

Three people buy wood together. One pays the merchant 5 coins, another 3 coins, and the last 2 coins.

There is a regular pentagon. The length of its side is a. Find the area of the pentagon. Generalize your result for a nonagon.

Two men rent a pasture for 100 liras on the understanding that two cows are to be counted as being equivalent to three sheep. The first puts in 60 cows and 85 sheep; the second 80 cows and 100 sheep. How much should each pay?

Discussion of 15th century French manuscript, with translation of its problems, including one with negative solutions