Question

Explain please, I’ve been having trouble with this question

Answer 1

Step-by-step explanation:

I didn't need the other angles, but right of the bat you can tell it's two right triangles back to back.

y has to be 90° , as you have noticed they already gave you 70° on the right side of the shape meaning if you were to add 90 which is why plus 70 what would that give you? 160.

the total interior for a triangles angles has to be 180°. if you do the math 180 - 160 you get the leftover 20° for x.

I suck at explaining stuff, hope this helps