ANSWER:-
The surface area of a sphere is s=
Here,Given that the actual value of the radius ,
and the measured value of the radius is
a) So, the error in radius
b) Now, The relative error;
c) Now, The percentage error,
%
%
%
%
(approx)
d) Now,
So, The actual surface area,
and the measured surface area
Thus, The exact error in surface area,
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ТА = 4.05cm
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Ar=rA-IM
=> Ar= (4.05 – 3.95) cm
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