Solve the the distance of 1 radian which is the standard unit of length on a hyperbolic plane. The formula is 1 radian = 180/Pi.
Solve for the three sides of the triangle by using trigonometry. The hyperbolic trigonometric functions are different than the typical functions.
sin A = sin h A/sin h C
cos A = tan h B/tan h C
tan A = tan h A/sin h B
In these equations, h is the height of the triangle in radians; and A, B and C are the three angles of the triangle, measured in degrees.
Based on the information that you have on the triangle, input the values and solve for angles of A, B and C from the trigonometry.
Solve for area using the formula for the hyperbolic triangle. The formula is Pi minus angles A, B and C all times the radian squared: (Pi - A - B - C)R^2