Answer
1) 
2) 
3) 
4) 
5) 
6) 
Explanation
From the diagram,
, corresponding angles are equal.
From the diagram, m=k, corresponding angles are equal.
But k+130=180, angles on a straight line sum up to 180 degrees.
This implies that k=180-130=50

From the diagram ;
,angles on a straight line sum up to 180 degrees.


From the diagram,
vertically opposite angles are equal.
From the triangular portion;
i+h+m=180. sum of interior angles of a triangle.
This implies that:
i+79+50=180
i+129=180
i=180-129

Finally
, vertically opposite angles are equal.