Question

a spherical tennis ball diameter of 7.0 cm find its volume ,and surface area

Answer 1

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

Answer 2

Answer:

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