Question

writing a two-column proof
given: ∠abc ≅ ∠def and
∠ghi ≅ ∠def
prove: m∠abc = m∠ghi
(there are some blocks with terms like m, =, ∠abc, ∠def, ∠ghi, m∠abc, m∠ghi and a two - column proof table with:
statements

1. ∠abc ≅ ∠def
2. ∠ghi ≅ ∠def

(and empty rows for more statements and reasons)
reasons

1. given
2. given)

Explanation:

Answer:

1. $\angle ABC \cong \angle GHI$
2. Transitive Property of Congruence
3. $m\angle ABC = m\angle GHI$
4. Definition of Congruent Angles