Question

please answer 1st question in the following picture.please answer this question fast

Answer 1

Q1. i) corresponding angles
      ii)alternate interior angles
     iii)co-interior angles

Answer 2

Q1. (i) If two lines (a and b) are parallel; then the corresponding angles (1 and 5) are equal.
(ii) If the alternate interior angles (4 and 6) are equal; the lines (a and b) are parallel.
(iii) If the sum of the co-interior angles (4 and 5) is equal to 180°; the lines (a and b) are parallel.