Respuesta :

Answer:

122.46 cm²

Step-by-step explanation:

A = [tex]\pi r^{2}[/tex]

~~~~~~~~~

[tex]r_{1}[/tex] = 8 cm

[tex]r_{2}[/tex] = 5 cm

A = 3.14 ( 8² - 5² ) ≈ 122.46 cm²