Answer to Question #139204 in Geometry for POLLY

Question

12 concrete cylindrical pillars of a building are to be covered by aluminum
cladding. Each pillar has a diameter of 70 cm and height of 7m.
1. How much concrete is needed to construct the concrete pillars?
2. What is the total lateral surface area of the 12 pillars?
3. If one sheet of aluminum cladding is 1.2m by 2.4m, how many
sheets of aluminum is needed to cover the 12 pillars?

Answer 1

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