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Find the volume of a regular tetrahedron whose altitude measures 10 cm.

Mathematics
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the formula is V = \(\sqrt 2\)/12 * a^3
it is not the edge that is given but the ALTITUDE..
now i got it.. :))

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Other answers:

How ?
altitude = root(2/3) * a 10 = root(2/3) * a 100=2/3 a^2 a= 5 root 6 V = root(2)/12 * a^3 V = 216.5
I thought it like this..\[\large\color{green}{x=\frac{100}{\sqrt{3}}}\] |dw:1353600894733:dw|
Sorry..\[\large\color{green}{x=\frac{10}{\sqrt{3}}}\]
that's fine.. ^^
;)
@eroshea I am glad tht u got it..:D :)
thanks for your help @hartnn and @Miyuru ^^
I didn't help.. o.O
Thank @hartnn ONLY
well, you tried helping me.. so thanks :))
u got it on your own, @eroshea :)
Is my way wrong @hartnn
if u got the same volume, then u are correct.
It's nearly 181.4 :(
then incorrect :P
:D
:D
OHH Anyway thnks for U all and Welcome...
Ohh @eroshea you mean the height is 10.. Isn't it ?
yes
I thought it was the altitude of a triangle.. :P
no.. it's the height of the tetrahedron
Ok got it.. :) Then your way is correct. :D
yep :D
what is the figure and where did 2/3 came from?

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