Question 151064: given:angle4 is an exterior angle of the triangle
Proves:m angle 4= angle 1+ angle 2
m angle 3+ m angle 4=180??
those that is Definition Supplementary angles???: given:angle4 is an exterior angle of the triangle
Proves:m angle 4= angle 1+ angle 2
m angle 3+ m angle 4=180??
those that is Definition Supplementary angles??? Answer by vleith(1162) (Show Source):
You can put this solution on YOUR website! Almost there.
Yes 3 and 4 are supplementary. So they total 180
The sum of the three angles in a triangle is always 180 too.
So 1 + 2 + 3 = 180
3 +4 = 180
1+2+3 = 3+4
1+2 = 4
