Question

find the unknown angles marked in the each of the following figures ​

Answer 1

Answer:

80+25+x should be 180

so,

105+x=180

x=180-105

so,

x=75

Answer 2

Answer:

A=x ; B=80; C= 25

By Angle Sum Property

A+B+C=180

x+80+25=180

x +105=180

x=180-105

x=75