The equation of a circle centered at the origin is x^2+y^2=64.what is the radius of the circle?

2 answers:

6 0

EQUATION OF A CIRCLE = (x-h)² + (y-k)² =r²

In this case, since the center of the cercle is in O, then h=0 & k=0

x²+y² = 64

lisov135 [29]3 years ago

6 0

The answer is 8, i thought it was 4 but my apex class said 8 was the correct answer.

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