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What was the geometry student looking for at the beach

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发表于 2009-4-8 12:18 | 显示全部楼层 |阅读模式
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Q: What was the geometry student looking for at the beach?1 a' f& `' v4 I' ~% g( K8 c1 M

& g8 q# H& s0 l- gA: A tangent.
2 y  Z, w+ D* i+ A, I. w$ k- c! v: T! |
tangent  
1 T& c" ]- M( ~, F' l1 m noun
3 L* [7 x: ]6 k* v: M0 S (geometry) a straight line that touches the outside of a curve but does not cross it
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