QUESTION IMAGE
Question
solve for x and find the measure of the bolded angle.
a) x = 7.2; bold angle = 90.6
b) x = 7.2; bold angle = 75
c) x = 6; bold angle = 90.6
d) x = 6; bold angle = 75
Step1: Igualar las expresiones
Como las líneas son paralelas y la transversal forma ángulos alternos internos, entonces \(12x + 3=13x - 3\).
Step2: Resolver para \(x\)
Restar \(12x\) de ambos lados: \(3=x - 3\). Luego sumar 3 a ambos lados: \(x = 6\).
Step3: Calcular el ángulo
Sustituir \(x = 6\) en \(12x+3\): \(12\times6 + 3=72 + 3=75\).
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d) \(x = 6\); Bold Angle \(= 75\)