Question

62 Determina las longitudes de los lados de un triángulo isósceles de 19 dm de perímetro que tiene los lados iguales 1 dm más cortos que el triple del lado desigual.

Ask by Kelly Howell. in Spain
Mar 11,2025

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Tutor-Verified Answer

Answer

Las longitudes de los lados del triángulo isósceles son 8 dm, 8 dm, y 3 dm.

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The Deep Dive

Para resolver el problema, primero definamos el lado desigual como \(x\). Según el enunciado, los lados iguales son \(3x - 1\). El perímetro del triángulo se ofrece como 19 dm, lo que significa que sumando los lados, tenemos: \[ x + 2(3x - 1) = 19 \] Simplificando la ecuación: \[ x + 6x - 2 = 19 \] \[ 7x - 2 = 19 \] Ahora, sumamos 2 a ambos lados: \[ 7x = 21 \] Dividimos entre 7: \[ x = 3 \] Así, el lado desigual mide 3 dm. Ahora, calculemos los lados iguales: \[ 3(3) - 1 = 9 - 1 = 8 \] Por lo tanto, la longitud de los lados del triángulo isósceles son 3 dm, 8 dm y 8 dm.

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