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Find the radius of a sphere …

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Find the radius of a sphere whose surface area is 154 cm square.

    • Posted by Md Khan 2 years, 1 month ago

    CBSE > Class 09 > Mathematics
    • 2 answers

    Rozyta Tensubam 2 years ago

    The surface area of the sphere = 154 cm² The surface area of the sphere of radius r, SA = 4πr² Then, SA = 4πr² = 154 cm² = r² = 154/4π = (154/4)(7/22) = (154×7)/(4×22) = r² = 49/4 = r = (7/2) = r = 3.5 cm. Thus, the radius of the sphere whose surface area is 154 cm² is 3.5 cm.

    0Thank You

    Pankaj Yadav 2 years, 1 month ago

    Hjsjsjejs

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