Respuesta :

genan

Answer:

In terms of pi: 243[tex]\pi[/tex]

in decimal form: 763.407

Step-by-step explanation:

to find surface area of a hemisphere the formula is,

[tex]3\pi r^{2}[/tex]

diameter (d) = 18

radius = d / 2 = 18 / 2

radius = 9

[tex]3\pi (9)^{2} \\3\pi (81)\\243\pi \\OR\\763.407[/tex]

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