The arc corresponding to the central corner is: 23/30 parts of the circle. Find this center corner.

The center angle of a full circle is 360 degrees.
If the length of the arc is 23/30 of the circumference, then its central angle is 23/30 of the central angle of the circle. Let’s calculate the central angle of the arc:
360 * 23/30 = 276 degrees.
Answer: 276 degrees.

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