SPECIAL RIGHT TRIANGLES Algebraic Expressions and Equations Plane Geometry Mathletes will become familiar with properties of 45-45-90 and 30-60-90 triangles. In this plan, the relationships between the sides of these two special right triangles will be derived. Then... Read More
MINI #33 - MORE CONSTRUCTIVE COUNTING Number Theory Probability, Counting and Combinatorics Video by Art of Problem Solving's Richard Rusczyk. Read More
MINI #22 - GEOMETRY/30-60-90 RIGHT TRIANGLES Plane Geometry Video by Art of Problem Solving's Richard Rusczyk. Read More
MINI #27 - AREA AND VOLUME Plane Geometry Solid Geometry Video by Art of Problem Solving's Richard Rusczyk. Read More
MINI #13 - COUNTING THE NUMBER OF SUBSETS OF A SET Number Theory Probability, Counting and Combinatorics Video by Art of Problem Solving's Richard Rusczyk. Read More
MINI #16 - RELATIONSHIPS BETWEEN A BOX'S DIMENSIONS, VOLUME AND SURFACE AREA Measurement Solid Geometry Video by Art of Problem Solving's Richard Rusczyk. Read More
MINI #6 - MATHCOUNTS POSTER SOLUTIONS Measurement Probability, Counting and Combinatorics Video by Art of Problem Solving's Richard Rusczyk. Read More
MINI #8 - GEOMETRY/AUXILIARY LINES & SPECIAL RIGHT TRIANGLES Plane Geometry Video by Art of Problem Solving's Richard Rusczyk. Read More
MINI #39 - CIRCLES AND AREA REVISITED Plane Geometry Video by Art of Problem Solving's Richard Rusczyk. Read More
MINI #43 - USING SIMILARITY TO SOLVE GEOMETRY PROBLEMS Plane Geometry Proportional Reasoning Solid Geometry Video by Art of Problem Solving's Richard Rusczyk. Read More