Answer the following questions related to surface areas of solids:
MATHEMATICS · Multi-part · CBSE · Mathematics · Surface Areas and Volumes · Surface Areas and Volumes
Problem
Answer the following questions related to surface areas of solids:
(a) State the difference between the lateral (curved) surface area and the total surface area of a right circular cylinder.
(b) A cylindrical water tank has inner radius 1.5m and height 4m. The tank is to be painted on the inside curved surface only. Which surface area will you consider in this case? Give one reason and calculate the area to be painted.
(c) The same tank is now to be completely covered on the outside with a plastic sheet, including its top and bottom. Which surface area will you consider this time? Give one reason and find the required area of plastic sheet.