Question 1010825
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If a sphere of radius r divided 8 equal part find the total surface area.
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You did not provide the description on how the sphere was divided in 8 equal parts. 

Probably, it was made by using four planes that all contain the common diameter of the sphere.

Then the total area of these 8 pieces is equal to the surface area of the sphere plus the area of 8 semi-circles 
of the same radius, i.e.


{{{4pi*r^2}}} + {{{8*((pi*r^2)/2)}}} = {{{8*pi*r^2}}}.


It is doubled area of the surface area of the sphere.
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