Question

The Diameter of a circle joins two points on the circle and it passes through the centre of the circle. If r is the radius of a circle, then Express diameter of a circle in terms it radius. ​

Answer 1

Step-by-step explanation:

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

Answer 2

Answer:

D = 2r

Step-by-step explanation:

since C is centre of circle, CA,CB,CP are radius

CA=CB=CP=R

now, AB is diameter of circle

AB + AC + BC

D=r + r=2r

ANSWER = D = 2r