Question

an exterior angle of a triangle is 136 and two interior opposite angle are equal. find their measure

Answer 1

opposite angle sum =136
x+x=136
2x=136
x=136/2
x=68

Answer 2

here is your solution

Given :-

an exterior angle of a triangle is 136°

A/q

two interior opposite angle are equal be X

Now
x+x=136°
2x=136°
x=68°

Hence,
so
two interior opposite angle are equal that is 68°and 68°