Types of right triangles. Isosceles right triangle. A right triangle with an angle of 30 degrees. A right triangle with an angle of 19.5 degrees
Special Right Triangles (video lessons, examples and solutions)
RicksMath Right Triangles
Types of right triangles
45-45-90 Triangle - Rules, Formula & Theorem
Area of Right Angled Triangle - Formula
Types Of Triangles - Fun2Do Labs
Right Triangle Calculator - Find Any Side or Angle - Inch Calculator
Triangle art
Special right triangle - Wikipedia
Hypotenuse - math word definition - Math Open Reference