Answer:
330
Explanation:
We can break each surface area into it pieces.
For the squares:
9x13=117
9x5=45
9x12=108
For the triangles:
12x5÷2=30
Add all of those together to get the total square area, which is
The prism is a triangular prism
9 * (12 + 5 + 13) + (2 * 30)= 330
30 being the base area
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