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The equation of a circle is given. Find the circumference of a circle. Write the circumference in terms of pi.

x^{2} + y^{2} = 16

Respuesta :

popalabdulqayou
C=2πr and x^2+y^2=r^2
r=4 because of the equation (16)^1/2 is 4
C=8π 

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