Question

Please give me the correct answer and please with the step by step explanation please ​

Answer 1

Step-by-step explanation:

3x+5x=120°(therefore sum of two opposite interior angles are equal one exterior angle)

8x=120°

x =120/8

x=15

3x=3×15=45°

5x=5×15=75°

another angle is 60°

because the sum of all angles in triangle is 180°

and also because of linear pair of angles 120°+x=180°