QUESTION IMAGE
Question
the measure of an angle is 81.5°. 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
Sean $\alpha = 81.5^{\circ}$ y $\beta$ el ángulo complementario. Entonces $\beta=90^{\circ}-\alpha$. Sustituyendo $\alpha = 81.5^{\circ}$, tenemos $\beta = 90^{\circ}-81.5^{\circ}=8.5^{\circ}$.
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$8.5$