Question

If the radius of a sphere is decreased by 55%, then by

Q: Answer-If the radius of a sphere is decreased by 55%, then by what percent does its surface area decrease?

Let the radius of the sphere 100 Area of sphere 4 10000 When the radius decreased by 55 So, radius 45 Then area 44545 42025 Decreased surface area 10000-20257975 Percent of decrease 797510000 100 79.75

what percent does its surface area decrease?

A 72.06%

B 79.75%

C 68.9%

D 72.96%

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If the radius of a sphere is decreased by 55%, then by

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