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Find to two decimal places, the area of the surfaces generated by revolving the curve y = 4sinx in 0 ≤ x ≤ π about the x-axis. The area of the surface is (Simplify your answer. Type an integer or decimal rounded to two decimal places as needed.)

Find to two decimal places, the area of the surfaces generated by revolving the curve y = 4sinx in 0 ≤ x ≤ π about the x-axis. The area of the surface is (Simplify your answer. Type an integer or decimal rounded to two decimal places as needed.)

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Find to two decimal places, the area of the surfaces generated by revolving the curve y = 4sinx in 0 ≤ x ≤ π about the x-axis. The area of the surface is (Simplify your answer. Type an integer or decimal rounded to two decimal places as needed.)

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