Surface area/volume

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August 23rd 2006, 11:13 PM
Bartimaeus

Surface area/volume

I've got a test next week, and I can't remember the equation for the surface area and volume of:
a) a sphere
b) a pyramid/cone

Please jolt my memory, thanks.
August 24th 2006, 03:44 AM
CaptainBlack

Quote:

Originally Posted by Bartimaeus

I've got a test next week, and I can't remember the equation for the surface area and volume of:
a) a sphere
b) a pyramid/cone

Please jolt my memory, thanks.

GOOGLE

MATHWORLD

WIKIPEDIA

RonL
August 24th 2006, 06:02 AM
dan

Quote:

Originally Posted by Bartimaeus

I've got a test next week, and I can't remember the equation for the surface area and volume of:
a) a sphere
b) a pyramid/cone

Please jolt my memory, thanks.

the volume of a sphere is V=[4pi(r^3)]/3
the volume of a righ cone is V=[pi(r^2)h]/3
the volume of a right pyarimid is V=[(area of base)h]/3 which is the same as [pi(r^2)h]/3
were r is radius and h is hight
August 24th 2006, 07:01 AM
CaptainBlack

Quote:

Originally Posted by dan

the volume of a sphere is V=[4pi(r^3)]/3
the volume of a righ cone is V=[pi(r^2)h]/3
the volume of a right pyarimid is V=[(area of base)h]/3 which is the same as [pi(r^2)h]/3
were r is radius and h is hight

Give a man a fish and you feed him for a day. Teach a man to fish and you feed him for a lifetime.

Chinese Proverb
August 24th 2006, 07:10 AM
Glaysher

Quote:

Originally Posted by CaptainBlack

Give a man a fish and you feed him for a day. Teach a man to fish and you feed him for a lifetime.

Chinese Proverb

But teach a forum user how to get his own answers then man becomes no longer a forum user :)
August 24th 2006, 08:33 AM
topsquark

Quote:

Originally Posted by Glaysher

But teach a forum user how to get his own answers then man becomes no longer a forum user :)

But isn't the ultimate goal of a teacher to teach a student to be able to learn on their own? The guide to self-mastery. That's always been my goal.

-Dan
August 24th 2006, 08:58 AM
dan

Quote:

Originally Posted by CaptainBlack

Give a man a fish and you feed him for a day. Teach a man to fish and you feed him for a lifetime.

Chinese Proverb

good piont...but he had a test coming up;) and...I know how that can be:D
dan
August 24th 2006, 11:14 AM
Glaysher

Quote:

Originally Posted by topsquark

But isn't the ultimate goal of a teacher to teach a student to be able to learn on their own? The guide to self-mastery. That's always been my goal.

-Dan

I was joking. I used my very first emoticon to emphasise it.

I in no way think that Captain Black was wrong, especially since the answers would be so easy to find.