What is the surface area of a triangular pyramid if each face has an area of 30 mm2?
2 answers:
The answer must be
![120\quad m{ m }^{ 2 }](https://tex.z-dn.net/?f=120%5Cquad%20m%7B%20m%20%7D%5E%7B%202%20%7D)
since the triangular pyramid has 4 faces and each has an area of 30
![m{ m }^{ 2 }](https://tex.z-dn.net/?f=m%7B%20m%20%7D%5E%7B%202%20%7D)
we should multiply that by 4 , so :
Answer:
120 i think
Step-by-step explanation:
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Answer:
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Step-by-step explanation:
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Step-by-step explanation:
Step-by-step explanation:
Distribute -1 across
-t-8=-7.1
-8+7.1=t
t=-0.9
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