QUESTION IMAGE
Question
the measure of an angle is 13°. what is the measure of its complementary angle?
Step1: Record la definición de ángulos complementarios
Dos ángulos son complementarios si la suma de sus medidas es 90°.
Step2: Calcular el ángulo complementario
Sea $x$ el ángulo complementario. Entonces $x + 13^{\circ}=90^{\circ}$, así que $x = 90^{\circ}- 13^{\circ}$.
$x=77^{\circ}$
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$77$