I REALLYYYYY NEED THE ANSWER TO THIS

Answer:
280 ft³
Step-by-step explanation:
Volume = Bh
h is the height of the triangular prism
B- base area of the triangle
[tex]Area \ of \ the \ base = B = \dfrac{1}{2}*base * height \ of \ the \ triangle\\\\\\ = \dfrac{1}{2}*8*7\\\\\\= 4*7\\\\= 28 \ ft^{2}[/tex]
Volume = B*h
= 28 * 10
= 280 ft³
Answer:
So, I believe it would be D. 280!
Step-by-step explanation: