Answer:
75m^3
Step-by-step explanation:
[tex]\hookrightarrow \: volume = 1766250 {m}^{2} [/tex]
As we have,
[tex]\hookrightarrow \: volume = \frac{4}{3} \pi {r}^{3} [/tex]
Now,
[tex]\hookrightarrow \: 1766250 {m}^{3} = \frac{4}{3} \times 3.14 \times {r}^{ 3} \\ \hookrightarrow \: 5298750 {m}^{3} = 12.56 {r}^{3} \\ \hookrightarrow \frac{5298750 {m}^{3} }{12.56} = {r}^{3} \\ \hookrightarrow {r}^{3} = 421875 {m}^{3} \\ \hookrightarrow r = \sqrt[3]{421875 {m}^{3} } \\ \hookrightarrow 75 {m}^{3} [/tex]