Answer:
159
Explanation:
Please note that this is only my way of doing it.
So, we can see there are two triangular bases. One base is 4 x 6 which is twenty four. However, since it is a triangular base, we divide it by two. There are two anyways though, so we will keep it as 24. There are three faces with each face having the dimensions 5 x 9. Now we solve the expression: 24+((5x9)x3)