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The radius of a hemisphere balloon …

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The radius of a hemisphere balloon increase from 6cm to 12cm as air is being pumped into it. The ratio of the surface areas of the balloon in the two cases is

    • Posted by Kavin M 1 year, 10 months ago

    CBSE > Class 09 > Mathematics
    • 2 answers

    Sheetal Gupta 1 year, 10 months ago

    Curved surface area of small hemisphere/Curved surface area of big hemisphere 2πrh/2πrh (2sa2andπsaπandhsah cut jayga) Small hemisphere=6 Big hemisphere=12 6/12 Ratio=1:2

    0Thank You

    Lalit Chand Prajapati 1 year, 10 months ago

    Hjfy

    0Thank You

    ANSWER
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