A) \[0{}^\circ \]
B) \[90{}^\circ \]
C) \[180{}^\circ \]
D) \[360{}^\circ \]
Correct Answer: A
Solution :
| [a] Central angle of a semicircle |
| \[\frac{360{}^\circ }{2}=180{}^\circ \] |
| \[\therefore \] Its supplementary angle |
| \[=180{}^\circ -180{}^\circ =0{}^\circ \] |
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