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1.

A. $\frac{θ}{360} {πr}^{2}$ বর্গ একক
B. $\frac{θ}{360} {πr}^{2}$ বর্গ একক
C. $\frac{θ}{360} {πr}^{2}$ বর্গ একক
D. $\frac{θ}{360} {πr}^{2}$ বর্গ একক

Answer: Option A

Explanation:

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