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A spherical balloon is partially blown up and its surface area is measured More air is then added increasing the volume of the balloon If the surface area of the balloon expands by a factor of 3.7?
IBEE4LIFE
Area varies as (radius)2.
Volume varies as (radius)3 = (area)3/2
If area increased by the factor of 3.7, then volume increased by the factor of (3.7)3/2 = 7.117 times (rounded)
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∙ 14y ago
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