Question

fill in the blank 1 point
the figure represents a ramp with handrails. segments ab and de are parallel to gh. segments bc and ef are parallel to hi. segments ac and gi are parallel.
cl if m∠jci = 115, what is m∠cba?
∠cba = choose your answer... 65 115 90 155

Explanation:

Step1: Identificar ángulos suplementarios

Como \( AB \parallel GH \) y \( BC \parallel HI \), y \( \angle JCB = 115^{\circ} \), \( \angle CBA \) y \( \angle JCB \) son ángulos suplementarios (suma \( 180^{\circ} \)).

Step2: Calcular \( m\angle CBA \)

\( m\angle CBA=180 - 115 \)
\( m\angle CBA = 65^{\circ} \)

Answer:

65