Can anybody please tell me if A is the correct answer?

Question

aonz · Answer

question?

mary.rojas · Answer

yes it is... just kidding we need the question first!

anonymous · Answer

attachment

anonymous · Answer

@AonZ , @mary.rojas

aonz · Answer

3x-5= 85+x

Do you know why this is?

aonz · Answer

One of the theorems states that the exterior angle of a triangle is equal to the sum of the two remote interior angles.

mary.rojas · Answer

why the 85? It seems random?

anonymous · Answer

exterior angles theorem

aonz · Answer

What do you mean why the 85? @mary.rojas

anonymous · Answer

so is A the correct answer then?

aonz · Answer

yes it is A

mary.rojas · Answer

85 seems random to me because it has nothing to do with finding the x for those to x angles on the bottom. 85 seems like it is randomly put in finding x......

aonz · Answer

Well, how would you find x then?

mary.rojas · Answer

85+x does not equal 180 so why even bother to add it to the equation. thats what I feel like. Thats why it seems random to me. And am not saying your wrong. I just want to understand

aonz · Answer

i used the exterior angle theorem

aonz · Answer

states that the exterior angle of a triangle is equal to the sum of the two remote interior angles.

aonz · Answer

The 2 remote  interior angles are x AND 85 :)

mary.rojas · Answer

ok i see now. thank you for explaining to me.

aonz · Answer

^^ hehe no problem