Want to learn how to tackle those tough MATHCOUNTS and AMC counting and probability problems? Check out Art of Problem Solving's Introduction to Counting & Probability by David Patrick.
Art
of Problem Solving Animated Proofs Gallery
The
above image illustrates the fact that of all triangles
inscribed in a given triangle, the one with least
perimeter connects the feet of the given triangle.
You can click and drag several of the points in
the diagram - try it and see!
Art of Problem Solving's Intermediate Algebra starts on June 18. Learn about systems of equations, sequences and series, symmetric sums, classical inequalities, and functional equations. Click here to enroll today!
