-
發表於:2022-08-08
問題詳情:如圖,在△ABC中,AB=AC=a,M為底邊BC上任意一點,過點M分別作AB、AC的平行線,交AC於P,交AB於Q,則四邊形AQMP的周長為___________.【回答】2a 知識點:平面四邊形單元測試題型:填空題...
-
發表於:2018-12-20
AnalysisonbeatingcharacteristicsandpaperpropertiesforabacapulpHistoricallytradedtextileproductswhichwereinternationallytradedincommerciallysignificantquantitiespriorto198...
-
發表於:2021-10-17
問題詳情:如圖,在△ABC中,AB=AC=a,BC=b(a>b).在△ABC內依次作∠CBD=∠A,∠DCE=∠CBD,∠EDF=∠DCE.則EF等於()A. B. C. D.【回答】C【考點】相似三角形的判定與*質;等腰三角形的判定與*質.【分析】依次...