Question

plz solve it fastttttttttt........​

Answer 1

Answer:

19) 1:2:1

Sum of all angles in a triangle = 180°

Therefore, let the measure of each angle be x

1x + 2x + 1x = 180°

4x = 180°

x = 180 / 4

x = 45°

Therefore the angles are:

1x = 1 × 45 = 45°

2x = 2 × 45° = 90°

1x = 1 × 45° = 45°

Hope this helped you