Water is leaking out from a spherical tank of radius 13 ft such that the water level in the tank is falling at a constant rate of 2ft/hr. At what rate is the radius of the top surface decreasing when the depth of the water in the tank is 8 ft?
I totally don't understand how to draw the picture ><
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2011-12-06 3:57 pm
回答 (2)
2011-12-06 6:08 pm
✔ 最佳答案
圖片參考：http://i1191.photobucket.com/albums/z467/robert1973/Dec11/Crazydiff2.jpg
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參考: 原創答案
2011-12-07 8:06 am
Bravo~ 很靚的圖~ 「翻雷滾天」Maestro，唔知點樣做到？
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原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20111206000051KK00138