alleryA pentagonal pyramid has 5 base corners and one apex. How many vertices in all?
A10
B6
C5
D11
Answer & Solution
Correct answer: B. 6
1. The pentagonal base has 5 corners.
2. The apex adds 1 more corner.
3. So there are 5 + 1 = 6 vertices.
_Source: Wikipedia, Pyramid (geometry) (CC BY-SA 4.0), Pyramid (geometry)_
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