Question

It's a Grade 7 question, but I can't seem to get this, help?

Answer 1

Gotta find x!

Answer 2

what do the tic marks on the lines mean?

Answer 3

That the sides are equal

Answer 4

and the single angle arcs ... they represent congruent angles as well?

Answer 5

No I actually just drew them, there shouldn't be any angle arcs. Just the tic marks, 130, and x

Answer 6

prolly not ...

Answer 7

isosceles triangle ... would you say that that 130 give us 50 to then 130 again?

Answer 8

and another isosceles ... with 130 as the tip