How to find the volume of a hemisphere?! 10 points?

2013-03-07 7:47 am
How to find the volume of a hemisphere?! 10 points?
Please explain how to find the answer to this question: (please provide the answer as well so i understand to the fullest)

A hemisphere has a diameter of 22, what's it's volume?

回答 (3)

2013-03-07 7:49 am
A hemisphere is half of a sphere.

The volume of a sphere is v = (4/3)πr^3

So half a sphere will have half the volume.
V = (4/6)πr^3

r = d/2 = 22/2 = 11

V = (4/6)π(11^3)
2013-03-07 7:52 am
Sphere Volume = (4/3)(pi)r^3
Hemisphere volume = (2/3)(pi)r^3
if d = 22, r = 22/2 = 11
V = (2/3)(pi)(11^3) = 887.3(pi) = 2787.6

- .--
2016-12-15 3:34 am
The formula for a sphere is 4/3 x pi x r^3 so the formula for a hemisphere may be 0.5 of that or: 2/3 x pi x r^3 so: 2/3 x pi x (22/2)^3 = 27,876.sixty 4 Wow! a superb form of incorrect solutions. Google the formula for a sphere; believe me, it is 4/3 x pi x r^3 no longer 4/3 x pi x r^2


收錄日期: 2021-04-20 20:28:25
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20130306234714AANnZxh

檢視 Wayback Machine 備份