# Problems from Another Time

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

Project to help discrete mathematics and computer science students learn basic properties of division and the Euclidean algorithm and its proof from Euclid himself
A project to help students learn from Archimedes' writings how he summed squares
A project to introduce students to logic and especially implication by consulting original sources from ancient to modern times
A collection of modules for teaching and learning by 'reading the masters'
Three people buy timber together. One pays the merchant 5 coins, another 3 coins, and the last 2 coins.
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?
An oracle ordered a prince to build a sacred building, whose space would be 400 cubits, the length being 6 cubits more than the width, and the width 3 cubits more than the height. Find the dimensions of the building.
Discussion of 15th century French manuscript, with translation of its problems, including one with negative solutions
Given right triangle ABC where C is the right angle, ellipse O (a,b) is inscribed in it, with its major axis parallel to BC. Calculate the semi-major axis, a, in terms of AC, BC and b.
In a right triangle, the hypotenuse is 13 and the sum of the sides around the right angle is 17. Find the lengths of the sides around the right angle.