1[分析]根据平行线分线段成比例定理由AB∥GH得出由GH∥CD得出将两个式子相加即可求出GH的长[详解]解:即①即②①②得解得故答案为:[点睛]本题考查了平行线分线段成比例定理熟练运用等式的性质进行解析:65[分析]根据平行线分线段成比例定理,由AB∥GH,得出GH CHABBC,由GH∥CD,得出GH BH3BC,将两个式子相加...
(3)证△AHG∽△CHA得 ,设BC=CD=AD=a,知AC= a,由 得AH= a、DH= a、CH= a,由 可得a的值. (1)连接 ∵四边形 是正方形,∴ , , ∵四边形 是正方形,∴ , , ∴ , , 三点在一条直线上 ∵ , ∴ ∴ ∴ (2)连接 , , ∵ ∴
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我人设的代码@GHCHA寒冰代号故居 倪敏名|2/22|20||Lunime|Blue|Salad|USA|Cool|Hero|2|1|33|8|3|3|1|0|1|2|1|1|52|138|5|46|0|5|5|23|23|1|1|3|0|112|6|0|0|1|0|18|0|122|46|3|3|7|7|4|4|61|61|94|102|2|2|26|26|2|2|38|27|27|0|16|16|153|46|1|1|0|1|1|...
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英文缩写 GH 英文缩写GH 英文全称Ghana 中文解释加纳 GH意思,GH的意思,GH是什么意思?爱站小工具网缩写频道为您提供有关于GH的解释和缩写,加纳的英文缩写是什么
同理∵ \( (((array)(ll) (∠ ACH=∠ NCH) \ (CH=CH) \ (∠ CHA=∠ CHN) (array))) . ∴△ ACH≅ △ NCH ∴ AH=NH即点H是AN中点 ∴ GH是△ ANM的中位线 即GH∥ MN ∵点M、N在BC上 ∴ GH∥ BC (2)∵△ ABG≅ △ MBG ∴ AB=BM=9cm ∵△ ACH≅ △ NCH ∴ A...
解A0BMN(1)证明:x_k=AH_-^2BC=F (2)由(1)可知3≤tAG NAC=CM,AB=BN∵ F为∠BCA角平分线又:BE为∠ABC角平分线GH=1/2MN=1/2(BN+CM-BC) ∴∠ACF=∠BCF ∴∠ABE=∠CBF =1/2(AB+AC-BC) ∵∠CHA=∠CHM=90° 2∵∠AGB=∠NGB=90° BG=BG=2.5HC=HC∴△ACH≅△MCH ∴ΔABG...
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英文缩写 GH. 英文缩写GH. 英文全称growth hormone 中文解释生长素 GH.意思,GH.的意思,GH.是什么意思?爱站小工具网缩写频道为您提供有关于GH.的解释和缩写,生长素的英文缩写是什么