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Radius of sphere is increased by 50%. By how much percentage
is surface area is increased?
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Answer Posted / prian
since all spheres are similar,then there is a proportion in their radius and their surface areas...
if a:b, then a^2:b^2
if a:a*.50, then a^2:(a*.50)^2
to simplify it, if the radius of the sphere is increased by 50%, then the surface area is increased by 25%...
| Is This Answer Correct ? | 5 Yes | 16 No |
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