いろいろ side 15 75 90 triangle 306127-Side lengths of a 15 75 90 triangle
File 36 54 90 Triangle Svg Wikimedia Commons It's a right triangle, so that makes it easier The short side is opposite the small angle, 15 , so 5 = hyp*sin (15) hyp = 5/sin (15) =Special Right Triangle Apply your sidechasing skills and the angle sum rectangle above to find the exact lengths of the missing triangle side lengths below Based on this, devise a Special Right Triangle rule Side lengths of a 15 75 90 triangle