Question

the ratio of the measures of the three angles of a triangles is 2:3:4.Find the measure of the largest angle

Answer 1

Let angles be 2x..3x..4x
Then
2x + 3x + 4 x = 180°
9 x = 180°
X = 20°
Largest angle equals to 4(20) = 80°

Answer 2

Let the 1st angle= 2x
Second = 3x
Third=4x
2x+3x+4x=180
9x=180
X=180/9=20

1st angle= 2x=2*20=40
Second=3*20=60
Third=4*20=80

The measure of the largest angle will be 80 degree