[tex]volume \: = \frac{1}{3} \times base \: area \: \times \: height \\ [/tex]
Thus :
[tex]80 = \frac{1}{3} \times 24 \times h \\ [/tex]
[tex]h = \frac{80 \times 3}{24} \\ [/tex]
[tex]h = \frac{240}{24} \\ [/tex]
[tex]h = \frac{24 \times 10}{24} \\ [/tex]
[tex]h = 10 \: cm[/tex]
Thus the last option is the correct answer.
