What is 半徑 in English?

Jack Win

2007-03-24 8:35 am

回答 (11)

Jenna 晴

2007-03-24 8:55 pm

✔ 最佳答案

radius=半徑
diameter=直徑
cercumference=圓周

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hi26yan

2007-03-30 12:23 am

radius(單數)

or

radii(眾數)

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Kingsney8

2007-03-27 12:41 am

radius
the simply is r
2r = diameter
2兀r = 圓周

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用戶7793

2007-03-26 9:18 pm

Radius

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Philip

2007-03-25 5:01 am

半徑 in English is "r a d i u s"

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kinkiyipkaki

2007-03-24 6:58 pm

Radius

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用戶5036

2007-03-24 8:42 am

In classical geometry, a radius of a circle or sphere is any line segment from its center to its boundary. By extension, the radius of a circle or sphere is the length of any such segment. The radius is half the diameter. In science and engineering the term radius of curvature is commonly used as a synonym for radius.

圖片參考：http://upload.wikimedia.org/wikipedia/commons/thumb/1/1d/CIRCLE_1.svg/180px-CIRCLE_1.svg.png

圖片參考：http://en.wikipedia.org/skins-1.5/common/images/magnify-clip.png
Circle illustration

在一個圓中，從圓心到圓周上任何一點的距離被稱為半徑；在數學裡常以 r 來表示其長度。
在圓里，半徑與該圓的切線垂直。半徑等於該圓直徑的二分之一。在圓里，面積與半徑的平方的比值為π，即圓周率。
另，一個球的半徑即是任一過該球球心的圓的半徑。

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2007-03-24 8:40 am

RADIUS

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2007-03-24 8:40 am

radius 圓周的半徑

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用戶95790

2007-03-24 8:38 am

Radius = 半徑
Diameter = 2 times 半徑

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