HELP PLEASE! urgent! explain step by step
Answer:
hope it help u
Step-by-step explanation:
[tex]volume \: of \:triangular \: prism = \frac{1}{2} b \times h \times h \\ = \frac{1}{2} \times 9 \times 9 \times 12 \\ = 486ft {}^{3} [/tex]