FormulaSheetAlgebra2Trig.pdf (application/pdf Object) Special Right Triangles - 30-60-90. The 30º- 60º- 90º triangle is one of two special right triangles we will be investigating.
The "special" nature of these triangles is their ability to yield exact answers instead of decimal approximations when dealing with trigonometric functions. Note: the hypotenuse need not be a length of 2 for these patterns to apply. Index of /QODWebSite/science. DCHS ACT Math Question of the Day. SAT Vocabulary Building for ACT SAT and GRE Preparation.