Question

give me the answer of 5,6,7,8

Answer 1

7) CE || AB
angle ABC = angle ACE
as we know that, exterior angle is the sum of interior opposite angle .so ,
angle ABC = 40°.
sum of all angles of a triangle = 180°
so,angle ACB = 65°.
8)l//m ,
so,sum of x and 110° = 180°
x = 70°
and ,linear pair angle are 180°.
so,x+z = 180
z = 110°
hence,z +y = 180
and ,y = 70°.
Hope it help