Formula for area:
[tex] \pi r^{2} [/tex]
Formula for circumference
[tex]2 \pi r[/tex]
1,962.5 /[tex] \pi [/tex] = 625
Now we find the cube root of 625 (because [tex] r^{2} [/tex] is r x r)
25 x 25 = 625
25 is radius
[tex]2 (25^{2})\pi
[/tex]
50 x pi = [tex]
157 cm^{2} [/tex]
