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Clearnote
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Junior High
Mathematics
求4、5解
Mathematics
Junior High
about 3 hoursago
蓁
求4、5解
4.依晨替班上設計了一個象徵幸運的七角星班級徽章,如右 圖,該星是由AD、AE、BE、BF、CF、CG、DG七線段 所構成,則此幸運星的七個角度之和(即<1+<2+∠3 +∠4+25+6+7)為多少度? (A) 160° (B) 180° (C) 200° (D) 220° ) 5. AB、BC、CD、DE、EF、FG、AG七個線段兩兩相連, A D E 如右圖,其中 BC、DE相交於H點,求<1+∠2+∠3 +∠4+25+∠6+7的度數為何? H Ba (A) 180 (B)360 E (C) 540(D) 720 日CD=CE, 則∠ADE
Answers
PEI
about 2 hoursago
如圖~
算式顏色跟圖上的顏色一樣 可以兩邊對照著看~
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