The radius of the circle whose equation is (x + 4)² + (y - 2)² = 36 is
1 answer:
Answer: 6
The equation given to you is in the form (x-h)^2 + (y-k)^2 = r^2
The right hand side 36 is in the place of r^2, so r^2 = 36 leading to r = 6 after you apply the square root to both sides.
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