find the cost of polishing a circular table top of diameter 2.8 M if the rate of polishing is hundred metre to square
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Answer:
Step-by-step explanation:
Area to be polished
=(110× 85+2×85×25+2×25×110+4×75×25+2×110×5)cm^2
=21700 cm^2
Cost of polishing=21700×20/100
=4340 rupee
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