Question

Please answer step by step​

Answer 1

Step-by-step explanation:

sum of angles in triangle is 180

120+60=180 straight line angle so another angle is 60"

98+60+b=180

b=180-158

b=22

Answer 2

Answer:

by the angle sum property of a triangle

98°+ 60° +b =180°

b= 180° - (98°+60°)

b= 180° - 158°

b= 22°