Question

B If two triangular pyramids are sticked along a common base, then find the total number of edges in resultant solid figure.​

Answer 1

Answer:

answer it your self

Step-by-step explanation:

Answer 2

Answer:

9

Step-by-step explanation

A regular pyramid has 6 edges.

Two of these should have 12 edges but since two of them are joined along the common base, there will be 3 common edges.

So, the total number of edges  =  12 −  3 =  9