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r²=9
r=√9
r=3
V=⁴/₃πr³
V=⁴/₃π3³
V=⁴/₃27π³
V=36π³
v=4/3π*r³
pp-36π²
pp-36π²
4π*r²=36π :/4x
r²=9
r=3
v=4/3π*r³
v=4/3π*3³
v=4/3π*27
v=36π³
odp: v=36π³