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?.