Question

Oi, preciso de ajuda nessas contas sobre polígonos. (Calcular a área das figuras planas)
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Answer 1

Resposta:

$e)\ 54\\\\f)\ 65\\\\g) \ 100\pi\\\\h)\ 16\pi$

Explicação passo-a-passo:

$e)\ \frac{9*12}{2} = \frac{108}{2}=54\\\\f)\ \frac{(10+16)*5}{2}=\frac{(26)*5}{2}=\frac{130}{2}=65\\\\g) \ \pi r^2= \pi*10^2 = 100\pi\\\\h)\ \pi r^2= \pi*4^2 = 16\pi$