Question

find cost of polishing a circular table on of radius 2.8 m if the rate of polishing is rupees 20 m²​

Answer 1

Given :-

➩ Radius = 2.8m

➩ Rate of polishing = ₹20/m²​

To find :-

➩ Cost of polishing a circular table

Solution :-

➩ Area to be polished = Area of circular table top

➩ Area of table top = πr²​

➩ Area of table top = 3.14 × 2.8 × 2.8

➩ Area of table top = 24.6 m²

➞ Cost of polishing 1 m² area = ₹20

➞ Cost of polishing 24.6 m²   = ₹x

➞ Cost of polishing 24.6 m² = 20 × 24.6

➞ Cost of polishing 24.6 m² = ₹492

➔ ∴ Cost of polishing a circular table of radius 2.8m is ₹492

Answer 2

Step-by-step explanation:

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