Area of a circle = π r^2
Where r is the radius
Since the area given is 484π, replacing:
484π = π r^2
Solve for r
484π / π = r^2
484 = r^2
√484 = r
r = 22
Diameter = 2 *¨radius = 2 * 22 = 44
Diameter = 44 ( C)
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