SOLUTION: Height of cone is 8cm and curved surface area is 188.4cm sq. Then find the volume of cone.
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Question 550972: Height of cone is 8cm and curved surface area is 188.4cm sq. Then find the volume of cone.
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
Height of cone is 8cm and curved surface area is 188.4cm sq.
Then find the volume of cone.
:
The curved portion surface area of a cone:
:
Find r
= 188.4
=
= 59.9696
Square both sides
= 3596.35
= 0
solve this with the quadratic formula
the positive solution
r^2 ~ 36, which is what we want to find the volume
:
Find the volume; *
*
V = 301.6 cu cm
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