Question

a pair of parallel lines is cut by a transversal. find a and b giving reasons.​

Answer 1

Answer:

a+90=180. (linear pair)

a=180-90=90

b=90. ( corresponding angles)

Answer 2

Finding angle A:

angle A + 90°=180° (linear pair)

=>angle A=180°-90°=90°

=>angle A=90°

Finding angle B:

angle B=90° (corresponding angle)

=>angle B=90