等腰梯形ABCD中,AD∥BC,EF为中位线,EF=18,AC⊥AB, ∠B=60°,求梯形ABCD的周长及及面积
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/13 07:49:00
![等腰梯形ABCD中,AD∥BC,EF为中位线,EF=18,AC⊥AB, ∠B=60°,求梯形ABCD的周长及及面积](/uploads/image/z/6137565-69-5.jpg?t=%E7%AD%89%E8%85%B0%E6%A2%AF%E5%BD%A2ABCD%E4%B8%AD%2CAD%E2%88%A5BC%2CEF%E4%B8%BA%E4%B8%AD%E4%BD%8D%E7%BA%BF%2CEF%3D18%2CAC%E2%8A%A5AB%2C+%E2%88%A0B%3D60%C2%B0%2C%E6%B1%82%E6%A2%AF%E5%BD%A2ABCD%E7%9A%84%E5%91%A8%E9%95%BF%E5%8F%8A%E5%8F%8A%E9%9D%A2%E7%A7%AF)
xU}OF*R'#|[n1&
Yôh!IWV[PR*M-J5 Q8 1IHkl=??oU/_m^Eyf^=^jv;;ɤ:-WkcG߅?=?6ܸ^ο~Pje!A+Wq=%*))gR՛ΔVV*jiTW>/˯
RYe]Z-__$H> $iVVEKH˷٢'-"6! ;PSaэyEt+kblX">Aօ+Yl-l{Vf/$
S˄~s{{Ѐg\|TC'Ok*N}W+dz
ppc¤y4_ܨ-pZ `⸉a.XaPǥN^7q:^0D%f,Mcϵ8j
bQ`K^&r