Question

Do I add multiply, add, subtract ? I need help!

Answer 1

I believe you add, degrees in triangles are 180 so 80+65= 145. 180-145 is 35

Explanation:

Answer 2

x=35

Explanation:

you are going to want to subtract. the best thing about triangle angles is that they all add to equal 180º no matter what. so what you can do is subtract the given angles from 180. so 180-80-65. which gives us 35.

Hope this helps!