Question

find angles from the image​

Answer 1

Answer:

2x+3x+4x=180°

9x=180°

x=20°

2x=40°

3x=60°

4x=80°

Answer 2

Answer:

Step-by-step explanation:

2x+3x+4x=180°

9x=180°

x=20°

2×20°

2x=40°

3×30°

3x=60°

4×20°

4x=80°