如图所示,在梯形ABCD中,AD平行于BC,CA平分角BCD,DE平行于AC,交BC的延长线于点E,角B等于2倍角E若tanB=2,AB=√5,求边BC的长
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/09 03:55:55
![如图所示,在梯形ABCD中,AD平行于BC,CA平分角BCD,DE平行于AC,交BC的延长线于点E,角B等于2倍角E若tanB=2,AB=√5,求边BC的长](/uploads/image/z/5494535-71-5.jpg?t=%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA%2C%E5%9C%A8%E6%A2%AF%E5%BD%A2ABCD%E4%B8%AD%2CAD%E5%B9%B3%E8%A1%8C%E4%BA%8EBC%2CCA%E5%B9%B3%E5%88%86%E8%A7%92BCD%2CDE%E5%B9%B3%E8%A1%8C%E4%BA%8EAC%2C%E4%BA%A4BC%E7%9A%84%E5%BB%B6%E9%95%BF%E7%BA%BF%E4%BA%8E%E7%82%B9E%2C%E8%A7%92B%E7%AD%89%E4%BA%8E2%E5%80%8D%E8%A7%92E%E8%8B%A5tanB%3D2%2CAB%3D%E2%88%9A5%2C%E6%B1%82%E8%BE%B9BC%E7%9A%84%E9%95%BF)
xUn@.+aaMD/>(j44 ZjP@Q C_vVBTVEV܇sKR>8u5~Xʼ]GEF1PY
߃\cF,TSB[AghB;(MpAY
4vs*Þ܋?ILmv|?Pxy]WSٴ&7xaJ{P04wA1,P%noArҰevPwAAc21@GJFi
g&R_-/.G$]t2ة C
Ub``"-QM*(+X(%RG^~MQI{--o BpІdc-<[el3dғj`Y(K,̲TZ|}xl.C^2iN1/oW꼵