A circular frame of diameter 16 cm is to be polished @ rupees 5 cm square find the cost of polishing the frame
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Step-by-step explanation:
Diameter= 16cm
Radius= 8cm
Area of circle = πr^2
= 22 × 8 ×8
7
=201.14 cm
cost of polishing= 201.14×5
= ₹40.22
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