Question

Gideon made two errors in the proof. Identify and correct the errors.

Answer 1

6 is incorrect as CPCTC cannot be used when congruent is not proven yet.

6 is also not needed as 1,5,7 prove it by ASA.

Answer 2

Step 6 is redundant to the proof.

The explanation is also wrong - CPCTC has not been proven. They are equal because the triangle is isosceles due to the two equal base angles.