i have found the area of sphere in two ways using the same approximation.but i get two different answers ;one the correct value 4∏R^2?how does this happen?(adsbygoogle = window.adsbygoogle || []).push({});

i'm attaching the solution below?please refer to the attachments and give a solution?

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# Why surface area of sphere differ when find in two ways using the same approximation?

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