Circle diameter = 15 ·

28 Jul 2024, 00:00

Circle diameter = 15 Image to Crop

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

You have 1 free calculations remaining

What is the Answer?

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

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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

Circle diameter = 15

A circle has diameter = 15 Calculate Area, Circumference, Radius, Diameter d = 2r r = 7.5 C = 2r C = 2 * 7.5 C = 15 or 47.1239 A = r2 A = * 7.52 A = 56.25 or 176.7146 r = 7.5C = 15 or 47.1239A = 56.25 or 176.7146