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OpenStudy (anonymous):
find the volume of a regular tetrahedron having a side of 20 cm.
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OpenStudy (anonymous):
help
OpenStudy (anonymous):
942.81 cm
OpenStudy (anonymous):
how? :)
OpenStudy (anonymous):
easy type your question on the internet. and the tell me
OpenStudy (anonymous):
wolf am i right
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OpenStudy (nirmalnema):
V=a^3 / 6rt2
OpenStudy (wolf1728):
gee I just got here. I'd need to look up the formula for a regular tetrahedron. seems nirma has it.
OpenStudy (anonymous):
tnx :)
OpenStudy (wolf1728):
Volume = edge^3 / (6*sqrt(2) Volume = 20^3 / 8.4852813742 Volume = 8,000 / 8.4852813742 Volume = 942.8090415821 Volume = 942.81 rounded and that agrees with 72595210002's calculation
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