The triangle is a special right triangle, and knowing it can save you a lot of time on standardized tests like the SAT and ACT Because its angles and side ratios are consistent, test makers love to incorporate this triangle into problems, especially on the nocalculator portion of the SAT All degree triangles have sides with the same basic ratio Two of the most common right triangles are and degree triangles If you look at the 30–60–90degree triangle in radians, it translates to the following In any triangle, you see the following The shortest leg is across from the 30degree angleA triangle is a special right triangle with some very special characteristics If you have a degree triangle, you can find a missing side
Third Ailles Rectangle Mathematics Stack Exchange