SOLUTION: The surface area, S, of a cone of radius r and h can be found using the formula S=πr√r^2+h^2. What is the height of this cone?
S= 225 cm^2
r= 5 cm
Algebra.Com
Question 1117077: The surface area, S, of a cone of radius r and h can be found using the formula S=πr√r^2+h^2. What is the height of this cone?
S= 225 cm^2
r= 5 cm
Found 3 solutions by Boreal, Alan3354, ankor@dixie-net.com:
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
225=pi*r (r+sqrt(r^2+h^2)
225=5 pi(5+sqrt(h^2+25)
divide both sides by 5 pi
14.324=5+sqrt(h^2+25)
9.324=sqrt(h^2+25)
86.84=h^2+25, after squaring both sides
61.84=h^2
h=7.86 cm
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
the formula . What is the height of this cone?
S= 225 cm^2
r= 5 cm
--------------
Solve for h
==========================================
Now what?
2 "solutions," 2 different numbers.
You might have to do it, and learn how to do it.
Both of them show you how to do it.
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
The surface area, S, of a cone of radius r and h can be found using the formula
What is the height of this cone?
S= 225 cm^2
r= 5 cm
:
divide both sides by 5
divide both sides by pi
square both sides
h =
h = 13.43 cm
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