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Sagot :

Answer:

159

Step-by-step 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)