Ta And Tb Are Tangents Touching The Circle At A And B Respectively.
Point o is the center of the circle and lies on the line segment ab. Hence, find the radius of the circle. Given angle boc=120 0 and angle ac=42 0the angle subtended by chord bc at a is 2120=60 0angle obc= angle ocb=30 0in triangle abc , angle.
Points A,B,C Lie On The Circle.
In the diagram, the points a, b, c and d lie on the circle, centre o. Find the values of y. If angle cob is 100 degrees then angle cao equals to a.