Question

The angles of a triangle are in the ratio 2 : 4 : 9. Then, find the difference between the measures of two greatest angles.​

Answer 1

Answer:

let the ratio coffiecent be x

according to question ,

2x+4x+9x=180(sum of angle of a triangle is 180degree)

15x=180

x=12

first largest angle =60 degree

second largest angle=48

difference between the measure two greatest angles =60-48

=12 degree