Question

Calcule a área da figura hachurada. (Adote TT = 3,14)

A)100,2 cm2
B)84,34 cm2
C)72,96 cm2
D)114 cm2
E)79 cm2​

Answer 1

Resposta:

c) 72,96 cm²

Explicação passo-a-passo:

$A_c=\frac{\pi r^2}{4}=\\\\A_c=\frac{3,14*16^2}{4}=\frac{803,84}{4}=200,96cm^2\\\\A_r=\frac{b*h}{2}=\\\\A_r=\frac{16*16}{2}=128cm^2\\\\A_r-A_c=200,96-128=72,96cm^2$