Question

Quantas diagonais apresenta o poligono de 25 lados

Answer 1

$> resolucao \\ \\ \\ \\ d = \frac{n(n - 3)}{2 } \\ \\ d = \frac{25(25 - 3)}{2} \\ \\ d = \frac{25 \times 22}{2} \\ \\ d = \frac{550}{2} \\ \\ d = 275 \\ \\ \\ = = = = = = = =$