Given the lines and direction as follows: AB = 57.6 m due east, BC 91.5 m N 68 E, CD = 102.6 m azimuth of 312. A reverse curve is to connect these three lines thus forming the center line of a new road. Compute: a. The central angles of the two curves. b. The length of the common radius of the reversed curve. C. The total length of the reversed curve.