press space and enter in side A B and C (C is the hypotenuse the rest is the legs) If you have a missing digit then enter it in as a lower case x and it will solve it for you. The angles and side is an approximate number. The angles and the sides are accurate down to .000001. If the sides you want are the square root of a number just solve the square root and enter it down to the decimal .000001 and you will get an very accurate answer.
All by me
