Please see the screenshot.
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Answer:
8 m
Step-by-step explanation:
The equation of a circle with center (h, k) and radius, r, is:
(x - h)² + (y - k)² = r²
Looking at the given equation, we have
r² = 16
√(r²) = √16
r = 4
The radius of the circle is 4 m.
Diameter = 2r = 2(4 m) = 8 m
Answer: 8 m