Question

Plz answer this i need it asap plzzzzz

Answer 1

BRAINLIEST PLZ

AOB is a straight line.

therefore angle AOB = 180°

AOC + COB = 180°

2x - 10 + 3x + 20 = 180°

5x = 170°

x= 34°

thus angle AOC = 2×34 - 10

AOC= 58°

And angle COB = 3×34 + 20

COB= 122°

Answer 2

Step-by-step explanation:  

2x-10+3x+20=180 [linear pair]

5x+10=180

5x=170

x=170\5

x=34

AOC=2X-10=34{2}-10=58

BOC =3X+20=3{34}+20=102+20=122