of a circle is
I want to calculate
Area
Circumference
Radius
Diameter
All
  

Answer
Success!
r = 2.5
C = or 15.708
A = 6.25π or 19.635

↓Steps Explained:↓

A circle has diameter = 5

Calculate Area, Circumference, Radius, Diameter

Calculate radius (r):

d = 2r

Rearranging the equation, we get:

r  =  d
  2

r  =  5
  2

r = 2.5

Calculate circumference (C):

C = 2πr

C = 2π * 2.5

C = or 15.708

Calculate Area (A):

A = πr2

A = π * 2.52

A = 6.25π or 19.635

Final Answers

r = 2.5
C = or 15.708
A = 6.25π or 19.635

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Related Calculators:  Unit Circle  |  Circle Equation  |  Annulus