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OpenStudy (anonymous):
What is the surface area of a triangular pyramid if each face has an area of 30 mm2
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OpenStudy (anonymous):
@nikato
OpenStudy (nikato):
what do you think?
OpenStudy (anonymous):
idk
OpenStudy (nikato):
|dw:1421633353579:dw| how many faces does a triangular pyramid have?
OpenStudy (anonymous):
4
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OpenStudy (nikato):
and since we know each face has an area of 30, just multiply 30x4=?
OpenStudy (anonymous):
120
OpenStudy (nikato):
yes
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