The diameter of the sphere is 14 cm.
What is a sphere ?
Sphere is a three dimensional object , it has no edges or vertices and is round in shape.
The surface area of the sphere is given by 4πr²
As radius = diameter /2
Surface area = 4π r²
196 π = 4π *(d/2)²
196/4 = d²/4
49 *4 = d²
d = 14 cm
Therefore the diameter of the sphere is 14 cm.
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