Question

please answer the question given in the picture above
the question for the figure is
in the given figure AC and BC are tangents. If angle ACO= 30 degree what is the value of reflex angle AOB​

Answer 1

Answer:

in triangle aoc and boc, oa=ob(radius) oc=oc (common) ac=bc (tangents)

therefore, these two triangles are congruent.

angle ocb =30

angle aob =180-(30+30)[ANGLE SUBSTENDED AT THE CENTRE IS SUPLEMENTARY]

=180-60

=120