I think…..
Measure for lst angle
Find total ratio =11
2/11*110°
Reason why we multiply by 110° because a triangle adds up to 180° but we remove 70° from 180° we get 110° to find the measures for the two angles
Okay sooo….
2/11*110°=20°
Measure for second angle
9/11*110°=90°
So to prove our answer we add all the three angles and see if they will add up to 180°
90°+20°+70°=180°
I don’t know if it’s right but this is what I think
Hope it helps
