Question

calcule el area de un circulo si su radio mide 9m

Answer 1

Area=$\pi *r^{2}$
Entonces.
$\pi *(9) ^{2}$
$\pi *81m ^{2}= 3.14*81m ^{2} = 254.34m ^{2}$
El area es de 254.34m$^{2}$