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Volume of a sphereGiven the radius, the volume of a sphere can be found by using the following formula:  V = (4/3) × pi × r3 Use pi = 3.14 Example #1 Find Vsphere if r = 2 inches Vsphere = 4/3 × pi × r3 Vsphere = 4/3 × 3.14 × 23 Vsphere = 4/3 × 3.14 × 8 Vsphere = 4/3 × 25.12 Vsphere = 4/3 × 25.12/1 Vsphere = (4 × 25.12)/(3 × 1) Vsphere = (100.48)/3 Vsphere = 33.49 inches3 Example #2 Find Vsphere if r = 3 cm Vsphere = 4/3 × pi × r3 Vsphere = 4/3 × 3.14 × 33 Vsphere = 4/3 × 3.14 × 27 Vsphere = 4/3 × 84.78 Vsphere = 4/3 × 84.78/1 Vsphere = (4 × 84.78)/(3 × 1) Vsphere = (339.12)/3 Vsphere = 113.04 cm3 Example #3 Find Vsphere if r = 2/3 cm Vsphere = 4/3 × pi × r3 Vsphere = 4/3 × 3.14 × (2/3)3 Vsphere = 4/3 × 3.14 × 2/3 ×2/3 × 2/3 Vsphere = 4/3 × 3.14 × 8/27 Vsphere = 4/3 × 3.14/1 × 8/27 Vsphere = (4 × 3.14 × 8) / ( 3 × 1 × 27 ) Vsphere = (100.48)/(81) Vsphere = 1.24 inches3 Fun game: Break spheres by matching balls with the same color
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