SOLUTION: what is the surface area of the sphere in exercise 1

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Question 207397This question is from textbook
: what is the surface area of the sphere in exercise 1 This question is from textbook

Answer by rfer(16322) About Me  (Show Source):
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Area of a sphere
A=4pir^2
or
A=pid^2
r=radius
d=diameter
pi=3.14