Find the angles - parallel lines

Find+The+Angles (binary/octet-stream)

Caption: : find all the angles

Find+The+Angles+ +Answers (binary/octet-stream)

Caption: : Answers

Parallel+Lines+ +Dificult (binary/octet-stream)

Find the angle h

Parallel+Lines+ +Dificult (binary/octet-stream)

Imagine another parallel line that cuts through "h".   We then have two sets of co - interior angle when added together make up "h" Therefore 135 + x = 180 ..   x = 45 140 + y = 180 ..   y=40   h = x + y..  h = 45 +  40 ...   h = 85

Parallel+Lines (binary/octet-stream)

Parallel+Lines (binary/octet-stream)

$$a = 99\,^{\circ}$$ $$b = 81\,^{\circ}$$ $$c = 99\,^{\circ}$$ $$d = 99\,^{\circ}$$ $$e = 81\,^{\circ}$$ $$f = 99\,^{\circ}$$ $$g = 81\,^{\circ}$$