Question

the angle of A of a triangle ABC is equal to the sum of the other two angles. Also the ratio of the angles B and C is 4:5. the sum of three angles in a triangle is 180 what is the measure of the large angle?​

Answer 1

Answer:

50

Step-by-step explanation:

let x be the angle

4x +5x+9x =180

18x=180

x=10

large angle is 50