Question

the circumference of a circle diameter 'd' is -​

Answer 1

Answer:

circumference of circle is πd

Step-by-step explanation:

We know diameter = 2 times radius

therefore, radius = diameter/2

now, circumference of a circle is 2πr

therefore, circumference is 2πd/2 = πd

Answer 2

Step-by-step explanation:

if r is the radius of the circle , then d=2r so ,

C=2pi r