Question

in the given figure 0 is the centre of circle if angle AOC=130degree then find angle ABC here is the fig. and question​

Answer 1

Answer:

angle ABC is 50 degree

Answer 2

Answer:

angle A + angle B + angle C + angle O=360°(angle sum property)

angle A + angle C + angle B=360-130( angle O=130)

180+ angle B=230[ angle A=angle C=90(the tangent at any point of a circle is perpendicular to the radius through the point of contact)].

angle B=230-180=50°

hope it helps you.....