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Maths

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The radius of a circle is 8cm, and the length of one of its chords is 12cm. Find the distance of the chord from the centre.

  • Maths - ,

    You can create a right-angled triangle
    with hypotenuse = 8 , (the radius)
    base of 6 , (1/2 your chord)
    and the height unknown, call it x

    x^2 + 6^2 = 8^2
    x^2 = 28
    x = √28 = 2√7

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