Answer:
Let the unknown measure of angle be =x=x
Ratio of angles =3:8:9=3:8:9
3x+8x+9x=20x3x+8x+9x=20x
Angles in a triangle add to 180∘180∘.
20x=18020x=180
x=18020=9x=18020=9
Therefore measure of largest angle is;
9x=9∗9=819x=9∗9=81
Measure of the largest angle =81∘=81∘
Answer (C)...
Step-by-step explanation:
