The measure of angle bac can be calculated using the equation sine super negative 1 (startfraction 3. 1 over 4. 5 endfraction) equals x. Triangle a b c is shown. Angle a c b is a right angle. The length of hypotenuse a b is 4. 5 inches and the length of c b is 3. 1 inches. Angle c a b is x. What is the measure of angle bac? round to the nearest whole degree. 0° 1° 44° 48°