Question

writing a two-column proof
given: ∠abc ≅ ∠def and
∠ghi ≅ ∠def
prove: m∠abc = m∠ghi
(there are some boxes and a two - column proof table with statements and reasons, the first statement in statements is ∠abc ≅ ∠def and the first reason in reasons is given)

Explanation:

Answer:

1. $\angle GHI \cong \angle DEF$
2. given
3. $\angle ABC \cong \angle GHI$
4. transitive property
5. $m\angle ABC = m\angle GHI$
6. definition of $\cong$ angles