SOLUTION: Hi once again hemisphere on hemisphere. The large one has diameter of 22cm smaller on top diameter 12 cm what is the total surface area. Thank u

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Question 1011307: Hi once again
hemisphere on hemisphere. The large one has diameter of 22cm smaller on top diameter 12 cm
what is the total surface area.
Thank u
Answer by addingup(3677) About Me  (Show Source):
You can put this solution on YOUR website!
Hemisphere surface:
4*pi*r^2
Big hemisphere:
4*pi*(22/2)^2= 4*pi*11^2
Little hemisphere:
4*pi*(12/2)^2= 4*pi*6^2
Use your calculator. First the square, then multiply the result times 4 and pi.
Finally, add the two surfaces to get your total surface area.
J