Respuesta :

Answer:

aob and boc are supplementary

angles 1 and 3 are adjacent .

Step-by-step explanation:

Answer:

Step-by-step explanation:

complimentary angles=90

∠R+∠T=90

3x+2x=90

5x=90

x=90/5

x=18

∠1 and 3 are vertical angles

∠AOB and ∠BOC are supplementary angles= 180