Respuesta :

apologiabiology
we gots a triangular prism+ rectangular prism

easiest way is base times heigth and treat the triangle+rectangle on the side as the base

so
find the area of the side
the rectangle bit is area=7.5 times 7=52.5
the triangle bit is 1/2 times 7.5 times 7=26.25
total area is 52.5+26.25=78.75

and the height is 8
volume=8 times 78.75=630 cubic feet


answer is C
mreijepatmat
Volume of the rectangular prism: V₁ = 8x7x7.5 = 420 ft³
Volume of the triangular prism: V₂ = (8x7x7.5)/2 = 210 ft³

Total volume = V₁+V₂ = 420+210 = 630 ft³

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