# Find total surface area of cone...

• October 2nd 2011, 08:49 AM
FailInMaths
Find total surface area of cone...
http://i1099.photobucket.com/albums/.../Photo0016.jpg

Question: find the total surface area of the ice cream cone (include external and internal surfaces.) Take pi = $22/7$

My solution: Basically what I did was to find slant height of both the internal and external cone and then evaluating it, find curved surface area for both internal and external + the circular area of the ice cream cone
Answer = $113.2$cm (Round off 1 decimal place)

Is my answer right?

Thanks
• October 2nd 2011, 10:25 AM
emakarov
Re: Find total surface area of cone...
I got the same answer.
• October 2nd 2011, 10:36 AM
FailInMaths
Re: Find total surface area of cone...
Quote:

Originally Posted by emakarov
I got the same answer.

Thanks !