Answer : The value of x is, 80°
Step-by-step explanation :
As we know that the sum of interior angles of a triangle is equal to [tex]180^o[/tex].
[tex]\angle A+\angle B+\angle C=180^o[/tex]
Given:
[tex]\angle A=30^o[/tex]
[tex]\angle B=70^o[/tex]
[tex]\angle C=x^o[/tex]
[tex]\angle A+\angle B+\angle C=180^o[/tex]
Now put all the given value of angle in the above expression, we get:
[tex]30^o+70^o+x^o=180^o[/tex]
[tex]x^o+100^o=180^o[/tex]
[tex]x^o=180^o-100^o[/tex]
[tex]x^o=80^o[/tex]
Therefore, the value of x is, 80°
