Question

Calcule as diagonas dos polígonos a seguir :a)pentágono,b)hexágono ,c)eneagono

Answer 1

Resposta:

a)

$\frac{5.(5 - 3)}{2} = 5$

b)

$\frac{6.(6 - 3)}{2} = 9$

c)

$\frac{9.(9 - 3)}{2} = 27$