A sphere has a radius of 3

Calculate the Volume, diameter, and surface area.

Calculate diameter (d):

d = 2r

d = 2 * 3

d = 6

Calculate Volume (V):

V  =  4πr3
  3

V  =  4π(33)
  3

V  =  4π(27)
  3

V  =  108π
  3

V = 36π or 113.0973

Calculate Surface Area (A):

SA = 4πr2

SA = 4π * 32

SA = 4π * 9

A = 36π or 113.0973

Final Answers


r = 3
d = 6
V = 36π or 113.0973
A = 36π or 113.0973


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Common Core State Standards In This Lesson
CCSS.MATH.CONTENT.8.G.C.9
What is the Answer?
r = 3
d = 6
V = 36π or 113.0973
A = 36π or 113.0973
How does the Spheres Calculator work?
Free Spheres Calculator - Calculates and solves for Volume (Capacity), Surface Area, and Radius of a Sphere.
This calculator has 1 input.
What 1 formula is used for the Spheres Calculator?
SA = 4?r2
d = 2r
V = 4πr3/3
What 7 concepts are covered in the Spheres Calculator?
capacity
the maximum amount that something can contain
diameter
distance from two endpoints of a circle through the center
d = 2r
radius
Distance from the center of a circle to the edge
C/2π
sphere
a geometrical object that is a three-dimensional analogue to a two-dimensional circle
spheres
surface area
the amount of space covering the outside of a three-dimensional shape.
volume
quantity of 3-dimensional space
Example calculations for the Spheres Calculator

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