Ĕ(sh)W(xu)֪R(sh)c(din)ƽ߅
(do)Zpֻ֪W(xu)(x)I֮r(sh)̡С,(sh)W(xu)֪R(sh)c(din)ϣ(du),gӭxHP(gun)֪R(sh)Ո(qng)P(gun)עCNFLAW(xu)(x)W(wng)!
1|(zh)1 εėl߅
2|(zh)2 ε`(du)Ǿഹֱÿһl(du)ǾƽһM(du)
3e=(du)Ǿ˷eһS=(a×b)÷2
4ж1 ߅ȵ߅
5ж2 (du)Ǿഹֱƽ߅
|(zh)1 εĂ(g)Ƕֱ
|(zh)2 εČ(du)Ǿ
ж1 (g)ֱǵ߅Ǿ
ж2 (du)Ǿȵƽ߅Ǿ
1 ͬһϵăɂ(g)
2εăɗl(du)Ǿ
3ж ͬһϵăɂ(g)ȵ ǵ
4(du)Ǿȵǵ
|(zh)
1 εĂ(g)Ƕֱėl߅
2εăɗl(du)Ǿȣһഹֱƽÿl(du)ǾƽһM(du)
Ĕ(sh)W(xu)֪R(sh)c(din)ƽ߅ΡP(gun)£
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