l
A circle has area = 8
Calculate Area, Circumference, Radius, Diameter
A = πr2
r2 = | A |
π |
r = | √A |
√π |
r = | √8 |
√3.1415926535898 |
r = | 2.8284271247462 |
1.7724538509055 |
r = 1.5957691216057
C = 2πr
C = 2π * 1.5957691216057
C = 3.1915π or 10.0265
d = 2r
d = 2 * 1.5957691216057
d = 3.1915382432115