Question

if the one exteroir angle of a triangle
is 60 and 2nd angle is 30 then find the 3rd angle​

Answer 1

Answer:

firstly all exterior angle of triangle=360 then 1 angle is 60 and second angle is 30 then according to question

60+30+x= 360

90+x=360

x= 360_90=270 then third angle is 270