Respuesta :

clarch19

Answer:

r = 6

Step-by-step explanation:

V(cyl) = π · r² · h

144π =  π · r² · 4

144 = r² · 4

144 = r²

 4

r = [tex]\sqrt{144}[/tex] ÷ [tex]\sqrt{4}[/tex]

r = 12/2

r = 6

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