Q: What was the geometry student looking for at the beach?( ^& C d3 f( L: Z: J
' ~! v/ m8 `7 i$ ~+ @7 OA: A tangent. % S* {- o: w: r) @' U
+ i* i* a+ S' e, ptangent 4 @3 k: V u" i5 ^9 `5 m
noun 0 W. A3 h' x8 {4 T' @& q6 ?: \ (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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