20 possibilities based on this as a combination not a permutation, 6 nCr 3 = 20
Answer:

Step-by-step explanation:
To evaluate
from the following expression:

Taking 


∴ 
A triangular prism has 6 vertices. :)
Answer:
C = 6.28 in.
A = 3.14 in.^2
Step-by-step explanation:
C = (pi)d
C = 3.14 * 2 in.
C = 6.28 in.
A = (pi)r^2
r = d/2 = 2 in./2 = 1 in.
A = 3.14 * (1 in.^2)
A = 3.14 in.^2