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15 November, 14:37

The ratio of the lengths of the radil of two spheres is 5 : 8 what is the ratio of the surface area of the smaller sphere to the surface area of the larger sphere

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  1. 15 November, 16:26
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    The ratio of the small sphere's area to that of the big one is 25:64

    Step-by-step explanation:

    The area of a sphere can be calculated using the formula:

    A = 4 π r^2

    Now, since their radii are if the ratio 5:8, we can say that the radius of the small sphere is 5 while that of the big sphere is 8

    For the small sphere, the value of the area will be 4 * π * 5^2 = 100 π unit

    For the big sphere, the value of the area will be 4 * π * 8^2 = 256 π unit

    The ratio of the smaller sphere to the larger sphere is;

    100 π : 256 π

    Divide through by 4

    25: 64
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