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QUESTION IMAGE

complete the proof that $\\angle eif \\cong \\angle gih$. diagram: vert…

Question

complete the proof that $\angle eif \cong \angle gih$.
diagram: vertical line with points e (top), i (middle), g (bottom); another line through i with points h (left) and f (right), forming angles.

statementreason
2$m\angle fig + m\angle gih = 180^\circ$angles forming a linear pair sum to $180^\circ$
3$m\angle eif + m\angle fig = m\angle fig + m\angle gih$transitive property of equality
4$m\angle eif = m\angle gih$properties of addition, subtraction, multiplication, and division
5$\angle eif \cong \angle gih$blank reason box

Explanation:

Step1: Recall the definition of congruent angles

If two angles have equal measures, then they are congruent. This is the definition of congruent angles.

Step2: Apply the definition to the given angles

We know from step 4 that \( m\angle EIF = m\angle GIH \). By the definition of congruent angles (if \( m\angle A = m\angle B \), then \( \angle A \cong \angle B \)), we can conclude that \( \angle EIF \cong \angle GIH \).

Answer:

If two angles have equal measures, then the angles are congruent (Definition of Congruent Angles)