Question

OD is perpendicular to chord AB of a circle whose centre is O. If BC is a diameter. Find the length of CA if OD is 4 cm.


could u please do it for me​

Answer 1

Answer:

∴ D is the midpoint of AB. Also, O being the center is the midpoint of BC. Thus, in Δ ABC, D and O are the midpoint of AB and BC respectively. ⇒ CA = 2OD ...Hence proved.