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Volume of a coneGiven the radius and h, the volume of a cone can be found by using the formula:  Vcone = 1/3 × b × h b is the area of the base of the cone. Since the base is a circle, area of the base = pi × r2 Thus, the formula is Vcone = 1/3 × pi × r2 × h Use pi = 3.14 Example #1: Calculate the volume if r = 2 cm and h = 3 cm Vcone = 1/3 × 3.14 × 22 × 3 Vcone = 1/3 × 3.14 × 4 × 3 Vcone = 1/3 × 3.14 × 12 Vcone = 1/3 × 37.68 Vcone = 1/3 × 37.68/1 Vcone = (1 × 37.68)/(3 × 1) Vcone = 37.68/3 Vcone = 12.56 cm3 Example #2: Calculate the volume if r = 4 cm and h = 2 cm Vcone = 1/3 × 3.14 × 42 × 2 Vcone = 1/3 × 3.14 × 16 × 2 Vcone = 1/3 × 3.14 × 32 Vcone = 1/3 × 100.48 Vcone = 1/3 × 100.48/1 Vcone = (1 × 100.48)/(3 × 1) Vcone = 100.48/3 Vcone = 33.49 cm3 Fun game: Break spheres by matching balls with the same color
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