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19 September, 21:54

The surface area of a sphere is 19what is the sphere radius

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  1. 20 September, 01:41
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    Surface area of sphere = 194 πr^2 = 19 πr^2=19/4

    πr^2=4.75

    r^2=4.75/3.14 (where π=3.14) r^2=1.51 r = √1.51

    r=1.22

    I don't know about the unit though.
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