Answer:
<1 and <2 - Add to 180
<1 and <3 - Equal
<3 and <4 - Add to 180
<2 and <4 - Equal
Explanation:
No such step-by-step explanation, but we can reason with theorems.
The Vertical Angle theorem states: the opposing angles of two intersecting lines must be congruent, or identical in value.
The Linear Pair theorem states: If two angles form a linear pair, then the measures of the angles add up to 180°.
<1 and <2
<3 and <4
These angle pairs criteria make them apply to the Linear Pair theorem. Therefore, when a pair of angles are a linear pair, they add up to 180.
<1 and <3
<2 and <4
These angle pairs' criteria make them apply to the Vertical Angle Theorem. Therefore, when a pair of angles are vertical angles, they will be congruent (equal, have the same measure).
For more help personally message me!