>>> from geometria import area_volum_esfera

>>> a,v = area_volum_esfera(1)
>>> round(a,4)
12.5664
>>> round(v,4)
4.1888

>>> a,v = area_volum_esfera(1.57)
>>> round(a,4)
30.9748
>>> round(v,4)
16.2102

>>> a,v = area_volum_esfera(23.536)
>>> round(a,4)
6961.0568
>>> round(v,4)
54611.8106

>>> a,v = area_volum_esfera(0.357)
>>> round(a,4)
1.6016
>>> round(v,4)
0.1906