l Circle diameter = 19
of a circle is
I want to calculate
Area
Circumference
Radius
Diameter
All
  

A circle has diameter = 19

Calculate Area, Circumference, Radius, Diameter

Calculate radius (r):

d = 2r

Rearranging the equation, we get:

r  =  d
  2

r  =  19
  2

r = 9.5

Calculate circumference (C):

C = 2πr

C = 2π * 9.5

C = 19π or 59.6903

Calculate Area (A):

A = πr2

A = π * 9.52

A = 90.25π or 283.5287

Final Answers


r = 9.5
C = 19π or 59.6903
A = 90.25π or 283.5287