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19 July, 01:30

Find the length of the radius of the following circle.

x² + y² = 16

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  1. 19 July, 01:49
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    The circle: (x - a) ² + (y - b) ² = r² where (a; b) - center; r-radius

    x² + y² = 16 therefore r² = 16 ⇒ r = √16 = 4
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