Question

plz tell this answer then I will mark u as brillant and plz tell correctly otherwise reported all pls​

Answer 1

Answer:

5.a.3x+(3x+20)+(4x-40)=180

10x-20=180

10x=180+20

$x = \frac{200}{10 } = 20\\ first \: angle = 3 \times 20 = 60 \\ second \: angle = 3 \times 20 + 20 = 80\\ third \: angle = 4 \times 20 - 40 = 40$