Respuesta:
At = πr . g + πr^2
-------------------------------------------
Al no saber el valor de la generatriz (g)
Apicamos Teorema de Pitagoras:
g^2 = 12^2 + 5^2
g^2 = 144 + 25
g^2 = 169
g = 13
Reemplazamos valores:
At = 3,14 (5) (13) + 3,14 (5)^2
At = 3,14 . 65 + 3,14 . 25
At = 204,1 + 78,5
At = 282,6
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Respuesta:
At = πr . g + πr^2
-------------------------------------------
Al no saber el valor de la generatriz (g)
Apicamos Teorema de Pitagoras:
g^2 = 12^2 + 5^2
g^2 = 144 + 25
g^2 = 169
g = 13
Reemplazamos valores:
At = 3,14 (5) (13) + 3,14 (5)^2
At = 3,14 . 65 + 3,14 . 25
At = 204,1 + 78,5
At = 282,6