What is the surface area of a triangular pyramid if each face has an area of 30mm squared?
2 answers:
A triangular pyramid has 4 triangles
3 are sides
1 is th base
they are normally all the same area
if 1 is 30
3*4=120
yah, 120mm squared is answer
I hope this helps you
3 triangles area+square area
3.30+30
90+30
120
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