a spherical tennis ball diameter of 7.0 cm find its volume ,and surface area
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Diameter of ball = 7 cm
Radius of ball = 7/2 cm
Volume = 4/3 pi r^3
= 4 × 22 × 7 × 7 × 7 / 3 × 7 × 2 × 2 ×2
= 11 × 7 × 7 / 3
= 11 × 49 / 3
= 539 / 3
= 179.6 cm^3
Surface Area = 4 pi r^2
= 4 × 22 × 7 × 7 / 7 × 2 × 2
= 22 × 7
= 154 cm^2
Radius of ball = 7/2 cm
Volume = 4/3 pi r^3
= 4 × 22 × 7 × 7 × 7 / 3 × 7 × 2 × 2 ×2
= 11 × 7 × 7 / 3
= 11 × 49 / 3
= 539 / 3
= 179.6 cm^3
Surface Area = 4 pi r^2
= 4 × 22 × 7 × 7 / 7 × 2 × 2
= 22 × 7
= 154 cm^2
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