Which ratio can be used to solve for y in the triangle below? Two angles of a triangle are 75 and 40 degrees, respectively. The side opposite 75 degrees is 25 millimeters, and the side opposite 40 degrees is y. StartFraction sine 75 over 25 EndFraction equals StartFraction sine 40 over y EndFraction. StartFraction sine 40 over 25 EndFraction equals StartFraction sine 75 over y EndFraction. StartFraction sine 25 over 75 EndFraction equals StartFraction sine y over 40 EndFraction. StartFraction sine 25 over 40 EndFraction equals StartFraction sine y over 75 EndFraction.