Question

please answer me urgent these two questions​

Answer 1

Step-by-step explanation:

linear pair means sum of both angles is equal to 180.

there fore if one of them is x other angle is 180-x

for next question it is

angle sum property

sum of all angles in a triangle is 180

given a =30

b=c

therefore

let b =x degree

30+2x=180

2x=150

x=75 degree