Answer:
102
Step-by-step explanation:
as you can see the AB with its measure and angle are given so it's basically the same thing as CD
165 should be right. Hope this helps
الله عظيم في كل حائل الله
The <em>correct answer</em> is:
Diana is correct.
Explanation:
A diagram of the problem is attached. Since ∠1 and ∠2 form a straight line, they are supplementary angles; this means that ∠1 + ∠2 = 180°.
Using the same logic, ∠1 and ∠4 form a straight line, so ∠1 + ∠4 = 180°.
Using the transitive property (or substitution), ∠1 + ∠2 = ∠1 + ∠4.
The last step would be to subtract ∠1 from each side, leaving ∠2 = ∠4, which are vertical angles.
Joby's proof is incorrect because you cannot use a statement you are trying to prove in its own proof.