. So, the correct option is D.
Use the given information to write down equations. We are given that . We are also given that ∠1 and ∠3 are supplementary angles, which means that:
m∠1+m∠3=.
Substituting the value of m∠1, we get:
m∠3=−m∠1
=180 −96
=
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. So, the correct option is D.
. We are also given that ∠1 and ∠3 are supplementary angles, which means that:
.−m∠1