Construct a segment whose measure is the length of .

Copy the segment and label it .

Make a large arc intersecting .

Make a second large arc.

Connect the points of intersection of the arcs.
is congruent to .
and are both the length of .

Find the midpoint of .

Make a second large arc.

Connect the points of intersection of the arcs.
Do not erase any of your markings.
is congruent to .
is the length of .

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