a dome of a building is in the form of a hemisphere.from inside,it was white-washed at the cost of Rs 4989.60.if the cost of white washing is Rs 20 per square metre,find the inside surface area of the dome
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Answer:
249.48
Step-by-step explanation:
Area = 20/metre
Area = rupees / length
Area = 4989.60/20
Area = 249.48
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