Q: What was the geometry student looking for at the beach?' K# H5 t# t* R; C, |" |' ?& d/ m* X W3 I
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A: A tangent. 0 {5 u8 J9 Q6 j7 C8 H1 b* K! l
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tangent / Q/ T# s! C; ]! c* _: U' y noun $ k: T s% q. p Z& S (geometry) a straight line that touches the outside of a curve but does not cross it
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发表于 2009-4-8 12:18
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