Respuesta :

Answer:

  906 in³

Step-by-step explanation:

The volume of a pyramid is given by the formula ...

  V = 1/3Bh

where B is the area of the base and h is the height of the pyramid. Here, the base is a triangle. The formula for its area is ...

  A = 1/2bh

where b is the base of the triangle and h is the triangle height.

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Triangle area:

  A = 1/2(19 in)(13 in) = 123.5 in²

Pyramid volume:

  V = 1/3(123.5 in²)(22 in) = 905 2/3 in³

  V ≈ 906 in³

The volume of the triangular pyramid is about 906 in³.