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How long is the side of a square picture that can fit inside a circular picture frame that has a diameter of 8 inches?
Hint: Pythagorean Theorem

  • math -

    a^2 + b^2 = c^2
    a^2 + a ^2 = 8^2
    2a^2 = 64
    a^2 = 64/2
    a^2 = 32
    a = 5.6569

  • math -

    Find the circumference of a circle with a radius of 2.1cm.(Use 3.14 for pi.)

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