Khan Academy Static

We hate to pick favorites, but there really are certain right triangles that are more special than others. In this tutorial, we pick them out, show why they're special, and prove it! These include 30-60-90 and 45-45-90 triangles (the numbers refer to the measure of the angles in the triangle).

7644_Area_of_a_regular_hexagon.html

7643_Special_right_triangles_proof_part_2_.html

7642_Special_right_triangles_proof_part_1_.html

7639_Special_right_triangles_intro_part_1_.html

7640_Special_right_triangles_intro_part_2_.html

7641_30_60_90_triangle_example_problem.html