please explain..........
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Inner diameter=15/4
Inner radius=15/4×1/2=15/8
Thickness =4/7
So, outer radius=Inner radius+thickness
=15/8+4/7
Solve the last step, check your answer
Inner radius=15/4×1/2=15/8
Thickness =4/7
So, outer radius=Inner radius+thickness
=15/8+4/7
Solve the last step, check your answer
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