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Question
a student was asked to find the value of x. what error did the student make? by the linear pairs theorem, w + 56 = 180, so w = 124. by the triangle exterior angle theorem, w = x + 31, or 124 = x + 31, so x = 93. x choose the correct answer below. a. the linear pairs theorem actually says that w + 56 + 44 = 180. this means w + 100 = 180, and so w = 80. therefore, x = w - 31 = 80 - 31 = 49. b. by the triangle exterior angle theorem, w = x + 44. this means x = w - 44 = 124 - 44 = 80. c. the linear pairs theorem actually says that w + 56 = 90. this means w = 34, and so x = w - 31 = 34 - 31 = 3. d. by the triangle exterior angle theorem, w = x + 44 + 31. this means w = x + 75, and so x = w - 75 = 124 - 75 = 49.
Explicación:
Paso1: Aplicar Teorema de Pares Lineales correctamente
El ángulo $w$ forma un par lineal con la suma de los ángulos $56^{\circ}$ y $44^{\circ}$. Entonces $w+(56 + 44)=180$, es decir $w + 100=180$, y $w=180 - 100=80$.
Paso2: Aplicar Teorema de Ángulo Exterior del Triángulo
Según el Teorema de Ángulo Exterior del Triángulo, $w=x + 31$. Sustituyendo $w = 80$ en la ecuación, obtenemos $80=x + 31$, entonces $x=80 - 31=49$.
Respuesta:
A. The Linear Pairs Theorem actually says that w + 56 + 44 = 180. This means w + 100 = 180, and so w = 80. Therefore, x = w - 31 = 80 - 31 = 49.
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Explicación:
Paso1: Aplicar Teorema de Pares Lineales correctamente
El ángulo $w$ forma un par lineal con la suma de los ángulos $56^{\circ}$ y $44^{\circ}$. Entonces $w+(56 + 44)=180$, es decir $w + 100=180$, y $w=180 - 100=80$.
Paso2: Aplicar Teorema de Ángulo Exterior del Triángulo
Según el Teorema de Ángulo Exterior del Triángulo, $w=x + 31$. Sustituyendo $w = 80$ en la ecuación, obtenemos $80=x + 31$, entonces $x=80 - 31=49$.
Respuesta:
A. The Linear Pairs Theorem actually says that w + 56 + 44 = 180. This means w + 100 = 180, and so w = 80. Therefore, x = w - 31 = 80 - 31 = 49.