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9 August, 15:19

The diameter of Earth (to two significant figures) is 7900 miles. Calculate its circumference.

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  1. 9 August, 15:31
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    The circumference of the Earth is 24818.58 miles

    Explanation:

    Analysis conceptual : The formula of the circumference is the following:

    L = π*D Formula (1)

    Where:

    L : is the length of the circumference in miles (mi)

    π : is the constant

    D : is the diameter of the circumference in miles (mi)

    Known data

    π = 3.1416

    D = 7900 miles: Diameter of the Earth

    Problem development

    We apply the formula 1 to calculate the circumference of the Earth (L):

    L = π*7900 miles

    L = 24818.58 miles
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