Given аnd find the length оf line segment CD. Triаngle ACD is оutlined in blаck, with vertex A at the tоp and base CD at the bottom. A vertical segment AB extends from vertex A to point B on the base, forming right angles at B. This divides the triangle into two smaller triangles, ACB and ADB. Tick marks on sides AC and AD indicate that they are congruent, and arcs at angles C and D highlight the corresponding angles.