[tex] \frac{19}{6} \pi \times \frac{360}{75} = \frac{19}{6} \pi \times \frac{24}{5} = \frac{76}{5} \pi[/tex]
[tex] {x}^{2} \times \pi = \frac{76}{5} \pi[/tex]
[tex]x = \frac{2 \sqrt{95} }{5} = 3.9[/tex]
