Question 1210164
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Just solved at this forum under this link


<A HREF=https://www.algebra.com/algebra/homework/Surface-area/Surface-area.faq.question.1210163.html>https://www.algebra.com/algebra/homework/Surface-area/Surface-area.faq.question.1210163.html</A>


https://www.algebra.com/algebra/homework/Surface-area/Surface-area.faq.question.1210163.html



See the solution by Edwin.