Question

OD is perpendicular to chord AC of a circle whose centre is O. if AB is adiameter of the circle, prove that BC= 2OD.

Answer 1

GIVEN:-o is centre,AB is diameter. TO PROVE:- BC=2OD PROOF:-we know that ABC is triangle. So,O is mid point of AB and OD//BC NOW,BC=2OD. {By mid point theorem}