QUESTION IMAGE
Question
find the measure of angle a for the triangle shown.
Step1: Usar la suma de ángulos en un triángulo
La suma de los ángulos internos de un triángulo es \(180^{\circ}\). En el triángulo dado, \(\angle C = 90^{\circ}\) (ángulo recto) y \(\angle B=38^{\circ}\). Sea \(\angle A=x\). Entonces, \(x + 90^{\circ}+38^{\circ}=180^{\circ}\).
Step2: Resolver para \(x\)
Simplificar la ecuación: \(x=180^{\circ}-(90^{\circ} + 38^{\circ})\).
Calcular \(90^{\circ}+38^{\circ}=128^{\circ}\). Luego \(x = 180^{\circ}-128^{\circ}\).
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