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    Surface areas of the sphere and the torus

    P-TRIV-RA36

    Area
    Real Analysis
    Status
    draft
    Contents

    Find the surface area of

    1. the two-dimensional sphere \(S ^ { 2 }\) of radius R.

    2. the two-dimensional torus \(T ^ { 2 }\) formed by rotation of the center of a circle of radius \(R _ { 1 }\) along a circle of radius \(R _ { 2 } , R _ { 2 } > R _ { 1 }\)

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