need help for basic trigo question
hi emm i am a begginer new to trigo just learnt it and i need help on this question.
i have included a basic diagram drawn by me.(sry if the diagram is not very nice)
i am stuck with the first part already.2nd part i know how do.
In the diagram,TA and TB are tangents to the circle,centre O at A and B respectively.The radius of the circle is 5cm and AB is 9cm.Find
b)the perpendicular distance from O to AB
c)the length of tangent TA