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Find the surface area of a …

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Find the surface area of a sphere of diameter: (I) 21 cm

    • Posted by Prabhat Patel 1 year ago

    CBSE > Class 09 > Mathematics
    • 1 answers

    Abhishek Sharma 1 year ago

    4 π r² = 4 x 22 / 7 x (21/2)² = 1386 sq cm

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