The equation for the circle below is x2 + y2 = 64. What is the length of the circle's radius?
Question
The equation for the circle below is x2 + y2 = 64. What is the length of the circle's radius?
Solution
The equation of a circle is given by x² + y² = r², where r is the radius of the circle. In the given equation, x² + y² = 64, we can see that r² = 64.
To find the radius, we take the square root of both sides of the equation r² = 64.
So, r = √64 = 8.
Therefore, the length of the circle's radius is 8 units.
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