Question

Calculate the angles of a triangle, if they are in the ratio 4: 5: ​

Answer 1

Step-by-step explanation:

let the angle 1= 4x

angle 2= 5x

using ASP of triangle,

angle 1+2=180°

4x+5x=180°

9x=180°

x=180/9

x= 20°

angle1=4x

4×20=80°

angle 2=5x

5×20=100°