your image doesnt enlarge. i zoomed in and i think i see
80 4 x 7 35 5 7 y w z 5 v o 4
is this correct?
if it is then we begin with triangle 80 4 x 7
a straight line is 180* with itself so the angle next to 80 is 180-80=100
angles in a triangle add up to 180 so
now the other triangle.
the other triangle has 3 sides the same as this triangle so its the same triangle.
because of the two parallel lines
again straight lines give 180* so
you can finish up