Question

Joel and Melinda provide the following proofs for vertical angles to be equal.

Answer 1

Only Joel’s proof is correct.
Only Melinda’s proof is correct.
Both Joel’s and Melinda’s proofs are correct.
Both Joel’s and Melinda’s proofs are incorrect.

Answer 2

only Joel's is correct

Answer 3

Thanks. Why..?

Answer 4

because Melinda's proof doesn't prove anything. But Joel's proof is factual

Answer 5

Okay:)