What value of y would make AOB a line in Fig. 8.43, if ∠AOC= 4y and ∠BOC =(6y+30)

Question

What value of y would make AOB a line in Fig. 8.43, if &#x2220; AOC= 4 y and &#x2220; BOC = (6 y +30)

Philoid · Accepted Answer

∠AOC + ∠BOC = 180^o

6y + 30^o + 4y = 180^o

10y = 150^o

y = 15^o