kloud90 kloud90

25-10-2018
Mathematics

contestada

how much air is needed to fill a ball with a diameter of 7 centimeters

Respuesta :

25-10-2018

you need the volume, and the baloon is a sfere

you have the diameter that is 2 * r

7 : 2 = 3.5 cm (r)

V = 4/3πr³

V = 4/3 * 3.14 * 3.5³

V = 179,59 cm³ (you can round to 179.6)

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