An arc that measures 180 is called a ________.A.minor arcB.major arcC.semicircleSUBMITarrow_backPREVIOUS

Break Down the Problem

1. Identify the type of arc based on the given measurement of 180 degrees.

Relevant Concepts

2. Recall the definitions:
   • A minor arc is less than 180 degrees.
   • A major arc is more than 180 degrees.
   • A semicircle is exactly 180 degrees.

Analysis and Detail

3. Since the arc measures 180 degrees, it fits the definition of a semicircle. It is not classified under minor or major arcs.

Verify and Summarize

4. Review the definitions to confirm:
   • Minor arc: < 180°
   • Major arc: > 180°
   • Semicircle: = 180°

Final Answer

The correct answer is C. semicircle.