l Circle diameter = 15
of a circle is
I want to calculate
Area
Circumference
Radius
Diameter
All
  

Answer
Success!
r = 7.5
C = 15π or 47.1239
A = 56.25π or 176.7146

↓Steps Explained:↓



A circle has diameter = 15

Calculate Area, Circumference, Radius, Diameter

Calculate radius (r):

d = 2r

Rearranging the equation, we get:

r  =  d
  2

r  =  15
  2

r = 7.5

Calculate circumference (C):

C = 2πr

C = 2π * 7.5

C = 15π or 47.1239

Calculate Area (A):

A = πr2

A = π * 7.52

A = 56.25π or 176.7146

Final Answers

r = 7.5
C = 15π or 47.1239
A = 56.25π or 176.7146


Related Calculators:  Unit Circle  |  Circle Equation  |  Annulus
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