Answer:
n+1
If a pyramid has n number of sides
⇒number of vertices in the base = n
Since in a pyramid there is one vertex on the top,and n number of faces are on the sides,and one face is in the base.
Total number of faces of pyramid = n+1
Answer:
10
Step-by-step explanation:

4 x 5 = 20
= 10
but how can we determine if there is no pic