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思路二:利用上题结论 解:如图,由上题知∠MAH=∠MZH,∠MHZ=180°-∠MDZ=180°-∠MSH=∠MSA, ∴∠AMD=∠ZMH,同理可得其余,故∠MHN,∠MDN相等或互补。
hbghlyj 发表于 2021-4-25 01:08
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2025-5-31 11:05 GMT+8
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