Question

Name the highlighted arc.
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Answer
Attempt 1 out of 2

Answer 1

I can’t see the diagram — could you upload the image or describe which part of the circle is shaded (which two letters are the endpoints of the highlighted arc and whether the arc passes through any other labeled point)?

If you want to try naming it yourself, use these rules:
- If the highlighted arc is the shorter arc between two adjacent labeled points A and B, name it with the two endpoints: arc AB (or arc BA).
- If there’s ambiguity (two arcs between the same endpoints) or the highlighted arc is the longer one, name it with three letters: arc ACB where A and B are the endpoints and C is any point on the highlighted arc between A and B.
- If it’s exactly a semicircle you can use three letters (endpoints + one point on the semicircle) or sometimes the notation “semicircle AB” is used.

Give the endpoints and any point on the highlighted arc and I’ll give the exact name.