Question

Please Can Anyone Explain This Sum Step By Step

This Is My Kind Request

Answer 1

Step-by-step explanation:

see 60° +30°+ 1 = 180° ( angle sum property)

90°+1 = 180°

1= 180°-90°

1= 90°

angle 1 +angle 2 = 180° ( linear pair )

90° + 2 = 180°

2 = 180°-90°

2 = 90°