Question

A tennis ball is of diameter 7.0 cm . what is it's volume in
(a)cm³
(b)m³

please do correctly...

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Answer 1

★Diameter of the ball (in cm) = 7cm

Radius of ball (in cm) = 7/2 = 3.5cm

Thus,

(a) Volume in cm^3:

Volume of a ball = 4/3 (π r^3)

= 4/3 (22/7 × 3.5×3.5×3.5)

= 4/3 (22 × 0.5×3.5×3.5)

= 4/3 (22 × 6.125)

= 4/3 (134.75)

= 539/3

= 179.66 cm^3

(b) Volume in m^3:

Volume of ball (in cm^3) = 179.66 cm^3

Hence,

Volume of ball (in m^3) = 179.66/10^6

= 179.66 × 10^-6

= 0.00017966 m^3

Answer 2

Hey mate your answer is ready