Answer:
We really aren't provided with enough information to give you the answer. I'll explain how to find them, but you should comment on my response and tell be if it gives you <em>any</em> values <em>at all</em> to work with.
So, ∠1 and ∠3 are vertical angles, which means they are equal to each other.
Along with that, ∠2 and ∠4 and <em>also</em> vertical angles, so they're equal to each other as well.
Now we have the information:
∠1 = ∠3
and
∠2 = ∠4
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Given that both of the two lines are intersecting, each angle has two angles that it is supplementary to.
<u>Supplementary</u> angle are angles that when added together equal exactly 180°.
A perfectly straight line's angle it 180°.
Using this knowledge, you can find that ∠1 is supplementary to ∠2, ∠2 is supplementary to ∠3, ∠3 is supplementary to ∠4, and ∠4 is supplementary to ∠1.
If that's still confusing, here's it explained simpler:
∠1 + ∠2 = 180°
∠2 + ∠3 = 180°
∠3 + ∠4 = 180°
∠4 + ∠1 = 180°
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But still - you haven't given us the information to find these values. Are you given even one angle measurement to work with?? If so, comment it here and I'll work it out for you.
