∠EGB and ∠AGF are congruent (vertical angles therorem).
∠EGB and ∠CHF are congruent by the Transitive Property of Equality
An angle is formed by the intersection of two or more lines. Types of angles are acute, obtuse and right angled.
From the diagram:
∠EGB and ∠AGF are congruent (vertical angles therorem).
∠AGF and ∠CHF are corresponding and congruent according to the Corresponding Angles Theorem
∠EGB and ∠CHF are congruent by the Transitive Property of Equality
Find out more on angles at: https://brainly.com/question/25770607