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Find the Center and Radius of the Circle with Equation

Question 215

Multiple Choice

Find the center and radius of the circle with equation x2 + y2 - 80 = 0.


A) center (0, 0) , r = 40
B) center (0, 0) , r = 0
C) Find the center and radius of the circle with equation x<sup>2</sup> + y<sup>2</sup> - 80 = 0. A) center (0, 0) , r = 40 B) center (0, 0) , r = 0 C) D) center (0, 0) , r = 80
D) center (0, 0) , r = 80

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