Question

ayuda porfavor es geometría porfavor con su resolución gracias ​

Answer 1

Respuesta:

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Answer 2

✅ Primero es necesario hallar el radio :

radio = Diámetro/2

$r = \frac{18 \: cm}{2} \\ 2r = 18 \: cm \\ r = \frac{18 \: cm}{2} \\ r = 9 \: cm$

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➡️ Ahora hallemos el área :

✅ Fórmula:

$\pi(r) {}^{2}$

✅ Despejemos:

$\pi(9 \: cm) {}^{2} \\ = 81\pi \: cm {}^{2}$

$81\pi \: cm {}^{2}$

✔opción 4)