Respuesta :

Answer:

Step-by-step explanation:

∠ABC = 1/2 ∠AOC

since we know ABC = 30° we can solve for AOC with a bit of Algebra

30 = 1/2 AOC

60 ° = AOC

:)  does it make sense?

the formula about is for inscribed angles , that is an angle that touches the outside of the circle and then goes through the other side.  :) Like ∠ABC