Trig calculations are mathematical equations used to calculate the angles and sides of a triangle. The four solutions for the term TRIG CALCULATION are AREA (4 letters), TANGENT (7 letters), SINE (4 letters), and COS (3 letters), INVERSE (7 letters). AREA is the calculation of the AREA of a triangle, TANGENT is the ratio of the length of the opposite side to the length of the adjacent side, SINE is the ratio of the length of the opposite side to the length of the hypotenuse, COS is the ratio of the length of the adjacent side to the length of the hypotenuse, and INVERSE is the calculation of the angle of a triangle given the lengths of its sides.