Construct a line through the point P below that is parallel to the line l by rotating l by 180° (using the steps outlined in Example 2).
Steps outlined in Example 2:
a. Label any point A on l.
b. Find the midpoint of segment AP using a ruler. (Measure the length of segment AP, and locate the point that is distance AP/2 from A between A and P.) Label the midpoint C.
c. Perform a 180° rotation around center C. To quickly find the image of l under this rotation by hand:
- Pick another point B on l.
- Draw .
- Draw circle: center C, radius CB.
- Label the other point where the circle intersects by Q.
- Draw .
d. Label the image of the rotation by 180° of l by l' = Rc,180(l).
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