I am not able to slove this some please anyone help me
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let us imagine that it is concentric circle.
the area of the ring= 154-38.5=115.5
115= 360°
1°=115/360
30°=115/360×30=9.583cm^2
the area of the ring= 154-38.5=115.5
115= 360°
1°=115/360
30°=115/360×30=9.583cm^2
faruh:
I am not able to understand
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