standard_description: Know precise definitions of angle, circle, perpendicular line, parallel line, and line segment, based on the undefined notions of point, line, distance along a line, and distance around a circular arc.
problem_activity: $${\overline{AD} \parallel \overline{BC}}$$
and
$${\angle EJB}$$
is supplementary to
$${\angle JBK}$$
. Prove that
$${\overline {AD} \parallel \overline{JE}}$$
.
[IMG]


aligns: yes