Question

A circular table top of radius 42 cm is to be polished. Find the cost of polishing at the rate of 18 per square metre. Also, on the corner i.e., outer boundary, it is to be decorated with a lace.Find the cost
of lace at the rate of 20 per metre. π=22/7







solve this question with full solution in a proper way

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Answer 1

Answer:

first find the area of the circle

22/7×42×42

22/7×1764

22×252

5554