Question

if the angles A, B, C of triangle are respectively in the ratio 2 : 4 : 5 then write the side in the descending order of their length​

Answer 1

hello buddy..❤️

Let all angles be x,

3x + 4x + 5x = 180° ( angle sum property of triangle)

12x = 180°

x = 15

Now,

3x = 3 × 15 = 45°

4x = 4 × 15 = 60°

5x = 5 × 15 = 75°

Answer 2

1.angle 2÷11×180 =32.7

2.angle 4÷11×180 = 65.4

3.angle 5÷11×180=81.8