A) 52.8 cm
B) 53.8 cm
C) 72.8 cm
D) 79.8 cm
Correct Answer: A
Solution :
Length of the arc \[=\frac{2\pi r\theta }{360{}^\circ }\,\,\text{cm}\] \[=\frac{2\times 22\times 42\times 72}{7\times 360{}^\circ }=52.8\,\,\text{cm}\]You need to login to perform this action.
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