Question

Kelly and Daniel wrote the following proofs to prove that vertical angles are congruent. who is correct?

A. both kelly and Daniel are correct
B.neither of them are correct
C.Kelly is correct
D.Daniel is correct

Answer 1

C.) Daniel is correct

Explanation:

In Daniel's proof, he wrote down each angle that was vertical to the other. He was able to correctly write the statements and give the right corresponding justification. Kelly, on the other hand, had only wrote down the theorem. She did not mention any properties to justify her proof, thus, she is incorrect. That leaves us with the answer choice, C.) Daniel is correct.

Answer 2

Hi there!

The correct answer is option D - Daniel is correct. This is because when proving a theorem congruent, you cannot use the theorem to prove itself. In her proof, Kelly used the theorem.

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