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Number of faces = 4

Any one of them could be a base, so number of bases also = 4

Therefore, sum = 8

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Q: What is the sum of the faces and bases of a triangular pyramid?
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Related questions

What is the surface area of this triangular pyramid?

It is the sum of the areas of its four faces.


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What is the formula for the surface area of a rectangular pyramid?

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How many faces and edges and vertices's does a rectangular pyramid have?

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When you add two triangular numbers why do they equal to a square number?

They don't necesarily,3 is a triangular number and 10 is a triangular number. Their sum is 13 which is not a square number.They don't necesarily,3 is a triangular number and 10 is a triangular number. Their sum is 13 which is not a square number.They don't necesarily,3 is a triangular number and 10 is a triangular number. Their sum is 13 which is not a square number.They don't necesarily,3 is a triangular number and 10 is a triangular number. Their sum is 13 which is not a square number.