[tex] \frac{n(n + 1)}{2} \times m \\ [/tex]
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[tex] \frac{6(6 + 1)}{2} \times 3 \\ \\ \frac{6(7)}{2} \times 3 \\ \\ \frac{42}{2} \times 3 \\ \\ 21 \times 3 \\ \\ 63[/tex]
El # de triángulos en la figura es 63 ✔
saludos ‼️
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✅ Conteo de figuras :
✔Fórmula:
[tex] \frac{n(n + 1)}{2} \times m \\ [/tex]
__________________________________
✔Despejemos :
[tex] \frac{6(6 + 1)}{2} \times 3 \\ \\ \frac{6(7)}{2} \times 3 \\ \\ \frac{42}{2} \times 3 \\ \\ 21 \times 3 \\ \\ 63[/tex]
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➡️ Respuesta :
El # de triángulos en la figura es 63 ✔
saludos ‼️