Question: Need help asap pls pls Suppose that a semicircular region with a vertical diameter of length 18 is rotated about that diameter. Determine the exact

Need help asap pls pls

Suppose that a semicircular region with a vertical diameter of length 18 is rotated about that diameter. Determine the exact surface area (in square units) and the exact volume (in cubic units) of the resulting solid of revolution. surface area units2 volume units 3Make drawings as needed to answer the questions. (a) Can two spheres be internally tangent? 0 Yes O No (b) Can two spheres have no points in common? O Yes O No For a sphere whose radius has length 4 m, find the following. Use the calculator value of . (Round your answers to two decimal places.) (a) approximate surface area in square meters m 2 (b) approximate volume in cubic meters m 3

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