Write a C++ program for a triangle given two angles and one side First check to be sure that the three values entered are valid. In particular, the following conditions must be met: Side > 0 For each angle: 0 < angle < 180 (if angle is in radians, convert it to degrees first and then check) For the sum of the two angles entered: 0 < Sum < 180 (if angles are in radians, convert them to degrees first and then check)