Q: What was the geometry student looking for at the beach?0 Z( J: O! z1 Q
: X+ H7 N- p8 G" j C5 Q$ _2 J
A: A tangent. ' d: E+ J3 E; J5 p9 T
+ @; P5 a" r0 b' M* W3 W% X% htangent 3 k. V! @# @' @( d* _! r6 ] noun . v) C, m8 S s- E (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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