Circle diameter = 16

A circle has diameter = 16 Calculate Area, Circumference, Radius, Diameter d = 2r r = 8 C = 2r C = 2 * 8 C = 16 or 50.2655 A = r2 A = * 82 A = 64 or 201.0619 r = 8C = 16 or 50.2655A = 64 or 201.0619

Circle diameter = 16 MathCelebrity logo Image to Crop

A circle has diameter = 16

Calculate Area, Circumference, Radius, Diameter

Calculate radius (r):

d = 2r

Rearranging the equation, we get:
r  =  d
  2

r  =  16
  2

r = 8

Calculate circumference (C):

C = 2πr

C = 2π * 8

C = 16π or 50.2655

Calculate Area (A):

A = πr2

A = π * 82

A = 64π or 201.0619

Final Answers

r = 8
C = 16π or 50.2655
A = 64π or 201.0619

You have 1 free calculations remaining


What is the Answer?

r = 8
C = 16π or 50.2655
A = 64π or 201.0619

How does the Circles Calculator work?

Free Circles Calculator - Calculates and solves for Radius, Diameter, Circumference, and Area of a Circle.
This calculator has 1 input.

What 3 formulas are used for the Circles Calculator?

What 7 concepts are covered in the Circles Calculator?

areaNumber of square units covering the shapecirclethe set of all points in the plane that are a fixed distance from a fixed pointcirclescircumferencethe perimeter of a circle or ellipsdiameterdistance from two endpoints of a circle through the center
d = 2roriginOn a two digit coordinate plane, the point (0, 0), where the x-axis and y-axis cross.radiusDistance from the center of a circle to the edge
C/2π

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