Find the length of line segment a c . use that length to find the length of line segment c d . triangle a b c is shown. a perpendicular bisector is drawn from point a to point c on side b d. angle a b c is 30 degrees and angle a d c is 25 degrees. the length of a b is 10 centimeters. what is the length of line segment c d? round to the nearest tenth. 2.3 cm 4.0 cm 10.7 cm 18.6 cm