A) \[10cm\]
B) \[20\,cm\]
C) \[11\frac{1}{4}cm\]
D) \[22\frac{1}{2}cm\]
Correct Answer: B
Solution :
Angle \[=\frac{\text{arc}}{\text{radius}}=\frac{15}{(3/4)}\,cm\] Þ Radius = 20 cm.
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