Question

The Circumference of a Circle can be found by multiplying Its diameter $\text{'}d\text{'}$ With

Answer 1

The Diameter Of A Circle $=2r$

The Circumference Of A Circle $C=2\mathrm{\pi r}$

where,

$C=$ Circumference or perimeter,

$R=$ the radius of a circle,

$\mathrm{\pi }=$ the mathematical constant is known as Pi