Respuesta :

volume of a triangular pyramid = 1/3 * base area (triangle) *height

triange area= 1/2 base * height

triegle area= 1/7 in * 5.5 in = 38.5 in^2

Volume = 1/3 * 38.5 in^2 * 3 in

Volume = 38.5 in^3

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Answer

choice b)

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