On a construction site, a deep pit is barricade from the remaining portion by using 100 hollow cones made of recycled plastic. Each one has a base diameter 20 cm and height half a meter. 
i) What is the cost of painting all the outer side of each of cone is to be painted red and cost of painting is rs 30 per m2 . [pie =3.14, root 26=5.1]
ii) which value is depicted by using recyclic plastic

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