alondrauzi alondrauzi

25-04-2020
Mathematics

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AC is tangent to circle O at point C. What is the length of OC

AC is tangent to circle O at point C What is the length of OC class=

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nktselepov nktselepov

26-04-2020

Let OC is x, so OC=OB=x

[tex] {4}^{2} + x^{2} = {(2 + x)}^{2} \\ 16 + {x}^{2} = 4 + 4x + {x}^{2} \\ 12 = 4x \\ x = 3[/tex]

Answer: OC=3 points

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