in the given figure o is the centre of the circle such that angle AOC =130° then find Angle ABC

in the given figure o is the centre of the circle such that angle AOC =130° then find Angle ABC questions
(iO The quest•omrpaper Consists of 30 questions divided into four sections A, B, C and
Section-A comprises of 6 questions of 1 mark each, Section-B comprises of 6 questions
marks each, Section-C comprises of 10 questions of 3 marks each and Section-D compris
of 8 questions of 4 marks each.
(iii) use of calculator is not permitted.
Section — A
Q.l) Find the value of 4Ä : 309
Q.2) In the given figure, O is the centre of the circle such that LAOC = 1300, then
(1
find LABC.
OR
In the given figure, if chords AB and CD of the circle intersect each other at right
then find the sum of angles x and y.