Question

Given the angles of a triangles are in the ratio 2 : 5 : 11 . Find the angles​

Answer 1

Let the angle be x

Then,

2x+5x+11x=180°

18x=180°

x=180/18=10

Therefore, x=10

Now 1st angle=2x=2×10=20°Ans

2nd angle=5x=5×10=50°Ans

3rd angle=11x=11×10=110°Ans

Therefore All angle in Triangle=20°, 50°, 110°,