Question

value of x from the given figure

Answer 1

by Linear pair

150+ angle a = 180

angle a =180-150=30

again by L. p

110+ another angle=180

another angle= 180-110 =70

sum of angles of a triangle=180

30+70+angle b=180

100+angle b=180

angle b=180-100

angle b =80

again by linear pair

angle b +x=180

80+x=180

x=180-80

x=100°