Resposta :
Resposta:
[tex]A = \frac{b \times h}{2} \\ A = \frac{8 \times 5.3}{2} = \\A = \frac{42.4}{2} \\ A = 21.2 \: cm ^{2} [/tex]
Resposta:
[tex]A = \frac{b \times h}{2} \\ A = \frac{8 \times 5.3}{2} = \\A = \frac{42.4}{2} \\ A = 21.2 \: cm ^{2} [/tex]