MINI #35 - USING SIMILARITY TO SOLVE GEOMETRY PROBLEMS Plane Geometry Proportional Reasoning Video by Art of Problem Solving's Richard Rusczyk.
MINI #30 - SIMILAR TRIANGLES AND PROPORTIONAL REASONING Plane Geometry Proportional Reasoning Video by Art of Problem Solving's Richard Rusczyk.
MINI #32 - USING ALGEBRA AND NUMBER SENSE AS SHORTCUTS Algebraic Expressions and Equations Problem Solving (Misc.) Video by Art of Problem Solving's Richard Rusczyk.
MINI #11 - TANGENT SEGMENTS & SIMILAR TRIANGLES Plane Geometry Proportional Reasoning Video by Art of Problem Solving's Richard Rusczyk.
MINI #43 - USING SIMILARITY TO SOLVE GEOMETRY PROBLEMS Plane Geometry Proportional Reasoning Solid Geometry Video by Art of Problem Solving's Richard Rusczyk.
MINI #51 - MORE SHORTCUTS USING ALGEBRA AND NUMBER SENSE Algebraic Expressions and Equations Video by Art of Problem Solving's Richard Rusczyk.
MINI #54 - SIMILAR TRIANGLES Plane Geometry Proportional Reasoning Video by Art of Problem Solving's Richard Rusczyk.
MINI #62 - SOLVING COUNTING PROBLEMS USING CASES Probability, Counting and Combinatorics Video by Art of Problem Solving's Richard Rusczyk.
MINI #65 - SEEING SYMMETRY IN SYSTEMS OF EQUATIONS Algebraic Expressions and Equations Video by Art of Problem Solving's Richard Rusczyk.
MINI #66 - SIMILARITY AND PROPORTIONAL REASONING Plane Geometry Proportional Reasoning Video by Art of Problem Solving's Richard Rusczyk.