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13. if the lengths of two sides of a triangle are 6 and 7, the length o…

Question

  1. if the lengths of two sides of a triangle are 6 and 7, the length of the third side may be

a. 1
b. 12
c. 13
d. 14

Explanation:

Step1: Aplicar la desigualdad triangular

La desigualdad triangular establece que para un triángulo con lados \(a\), \(b\) y \(c\), se cumple \(|a - b|\lt c\lt a + b\). Aquí \(a = 6\) y \(b = 7\).
Calculamos \(|6 - 7|=1\) y \(6 + 7 = 13\).
Entonces \(1\lt c\lt13\).

Answer:

B. 12