Question

A,B,C are three points on the circle with centre o such that angle aob is 90° and angle boc is 110° find angle abc​

Sorry...it's maths...I later saw that it came as biology...sorry

Answer 1

110+90=200 .
Draw out a circle
O is the middle
A is to the left
B is the center
C is to the right
Draw out lines of 90
Than 110
Add
200 is answer