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volume of a sphere = 1/3πr³, where r is the radius.

The bouncy ball below is a sphere with a volume of 4200 mm³.
Calculate its radius, r.
If your answer is a decimal, give it to 2 d.p.

Respuesta :

Answer:

Step-by-step explanation:

The volume of a sphere is 4/3 pi ^3.

So

4200 = 4/3 pi r^3

r^3 = (4200 * 3/4) / pi

     = 1002.676

r = cube root  1002.676

 = 10.01 mm to 2 DP's.

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