Can anyone pls i don’t get this one?

So, if we use the Pythagorean Theorem, we know that a²+b²=c². The a value would be 4, since the point on the circumference is 4 higher than the center, and the b value would be 6, since the point on the circumference is 6 to the left of the center. And if we plug those numbers in, we get that 4²+6²=c². 4²=16. 6²=36. When we add 16 and 36, we get 52. Now, don't be tricked by answer 4, which, although says 52, is not the answer. We know that 52=c², so we must find the square root of 52, which is ≈7.21, and that is the answer. 7.21

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