Question

CERTAIN ANSWERS!!! Please assist me! I will award you brain crown! Thank you in advance:))

Answer 1

Answer:

See below.

Step-by-step explanation:

  Statements:                                              Reasons:

1) $\angle 2\cong\angle 3$                                                    Given

2) $m\angle2=m\angle 3$                                             Definition of Congruence

3) $\angle 1\text{ and } \angle 2\text{ form a linear pair}$                   Given

4) $\angle 1 \text{ and } \angle 2\text{ are supplementary}$                  Supplement Theorem

5) $m\angle 1+m\angle 2=180^\circ$                                 Definition of Supplementary Angles

6) $m\angle 1+m\angle 3=180&^\circ$                                 Substitution

7) $\angle 1\text{ and } \angle 3 \text{ are supplementary}$                 Definition of Supplementary

And we're done!