2. Chords and Arcs
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An arc is a part of a circle. A minor arc is smaller than a semicircle, and we name it by its endpoints.
Example Solution: QT, RQ, TS, TR, SR
Note that, as we have already said, we name a minor arc by its endpoints. Therefore, we can have different names for the same arc. Although the ones mentioned above are all of the minor arcs in the diagram, they may have different names.