Biblically Accurate Trigneometry Anybody want to add sound effects/a voice over? Had to change from rizz to charisma... Learning about trig functions in math class, I thought why not. For anybody who doesn't understand, these are two functions. But in measures of right triangles, complementary angles in the respective function are equal. so sin(70)=cos(20), and together 70+20 makes 90. So the two angles are complementary, meaning they make up a 90 degree angle.