SOLUTION: a cone cannot have a surface area greater than 1000pi cm^2. what is the largest radius, correct to one decimal place, that will achieve this if the slant height is 20 cm?

Question 815492: a cone cannot have a surface area greater than 1000pi cm^2. what is the largest radius, correct to one decimal place, that will achieve this if the slant height is 20 cm?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!

 

Hi,



Question states***

S = 

And  



     r^2 < 980   |note:  980 = 

        (tossing out negative solution for unit measure 

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