Question

the diameter of the Circle to join two points on the circle and it's passes through the center of the circle if r is the radius of the circle then express diameter of the circle in terms of its radius​

Answer 1

Answer:

sorry don't know

I don't understand

Answer 2

Answer:

Since C is center of circle, CA,CB,CP are radius.

∴CA=CB=CP=r

Now,AB is diameter of circle.

AB=AC+BC

d=r+r=2r