Question

math formula of circle

Answer 1

Hey mate !!

Area of a Circle = Pie*radius ^2
Circumference of a Circle = 2*pie*radius

Hope this helps...☺☺

Answer 2

here you go ☆☆

if r is radius of circle then,

area of circle=
$\pi {r}^{2}$
perimeter of circle
$2\pi {r}$

hope it helps you.....