Triangle ABC is a right triangle and cos(22.6o)=StartFraction b Over 13 EndFraction. Solve for b and round to the nearest whole number. Triangle A B C is shown. Angle A C B is 90 degrees and angle C A B is 22.6 degrees. The length of hypotenuse A B is 13 centimeters, the length of A C is b, and the length of C B is a. Which equation correctly uses the value of b to solve for a? tan(22.6o) = StartFraction a Over 13 EndFraction tan(22.6o) = StartFraction 13 Over a EndFraction tan(22.6o) = StartFraction a Over 12 EndFraction tan(22.6o) = StartFraction 12 Over a EndFraction