This mathematics problem involves applying core mathematical principles and formulas. Below you will find a complete step-by-step solution with detailed explanations for each step, helping you understand not just the answer but the method behind it.
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Here's the solution for question 9(d): 9) (d) The sphere is melted down and made into a solid cylinder with radius 3.1 cm. Calculate the total surface area of the cylinder. To solve this problem, we need the radius of the original sphere. This information is not visible in the provided image and would typically be given in an earlier part of question 9. Assumption: For the purpose of providing a complete solution, we will assume the radius of the sphere is r_s = 4 cm. Given: Radius of the sphere, r_s = 4 cm (assumed) Radius of the cylinder, r_c = 3.1 cm Step 1: Calculate the