Question
Fri March 30, 2012 By: Uma Sridharan

The radius of a sphere is measured to be (2.1+_0.5).calculate its surface area with abs. error

Expert Reply
Tue April 03, 2012

Given, R = (2.1 ± 0.5)

We know, surface area of sphere, A = 4?R 2

Total area = A ± ?A = (55.39 ± 26.37)

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