Respuesta :

josshyaby

Answer:

Step-by-step explanation:

If the ratio of triangle = 5:7:8

Total ratio = 5+7+8 = 20

The sum of angle in a triangle is 180°

1st angle= 5/20 × 180 = 5 × 9 = 45°

2nd angle= 7/20 × 180= 7 × 9= 63°

3rd angle= 8/20 × 180 = 8 × 9 = 72°