学霸help me!i need

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学霸helpme!ineed学霸helpme!ineed 学霸helpme!ineed（1）因为EF∥ADDE平分∠ADC所以∠1=∠DEF=∠2所以DF＝EF又因为ABCD是平行四边形所以

学霸help me!i need
学霸help me!i need
 

学霸help me!i need
（1）因为EF∥AD DE平分∠ADC 所以∠1=∠DEF=∠2 所以DF＝EF 又因为ABCD是平行四边形 所以AEFD为菱形 （2）由（1）得AEFD是菱形,即AD=AE,且∠A=60º所以ADE为等边三角形 连结AF交DE与点O 所以AF⊥DE AF=2AO=2×√(2²-1)=2√3 所以S=AF×DE=2×2√3=4√3

学霸help me!i need 第九题 学霸,I need some help please help me ..i need you 学霸help me 学霸Help me help,I need help 英语学霸,help me. 英语学霸help me 学霸.学霸.help me. I need you help me with English.改错 Can you give me a h_____?I need some help. I need someone to help me to be happier. i need a somebody who can help me .怎么翻译 I need 20,0000yuan,who can help me I need someone to help me of the housework i need someone to help me with the housework.的区别 I need you help Thank you for helping me!I need you help Thank you for helping me! Help I need you help i need you help me 这句子为什么不对 “ you help me” 做need 的宾语 充当宾语从句嘛.