Answer:
A right prism has a triangular base .
Length of the base of prism is 9 feet
Height of the base is 8 feet
Height of prism is 2.5 feet
We have been asked to determine the volume of the prism .
[tex]\\ \bullet{\boxed{ \purple{\bf{ volume \: of \: prism= \: triangular \: base \: area \: \times length }}}}[/tex]
Put the value we obtain
[tex] \sf \implies \: volume \: of \: prism \: = \bigg(\dfrac{1}{2} \times 9 \times 8 \bigg) \times 2.5 \\ \\ \sf \implies \: volume \: of \: prism \: = 9 \times 4 \times 2.5 \\ \\ \sf \implies \: volume \: of \: prism \: = 36 \times 2.5 \\ \\ \sf \implies \: volume \: of \: prism \: = 90 {feet}^{3} [/tex]
So, the volume of the prism is 90 feet³ .
Your Correct option is 90 ft
