With this App you can solve a right triangle using trigonometric functions. The procedure is included for a better understanding. You also have 4 calculation options for each function. The Mnemonic Rule SOH-CAH-TOA refers to the 3 trigonometric functions. SOH: Sine of Angle = Opposite Leg / Hypotenuse, CAH: Cosine of Angle = Adjacent Leg on Hypotenuse and TOA = Tangent of Angle = Opposite Leg on Adjacent Leg