Respuesta :

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Ver imagen fireywolfa

Answer:

Step-by-step explanation:

340.4 cubic inches (correct)

Approx. answer is 341.53 cubic inches (used to check work)

Step-by-step explanation:

Find volume of triangular prism

find area of base of triangular pyramid

multiply by 7

divide by 3

add to area of prism

64.4 plus 277.13 equals 341.53