如图6,在△ABC中,∠ABC和∠ACB的平分线相交于点O,过O点作EF//BC,交AB于E,交AC于F,从点O作OD⊥AB于D,OD=m若CE+FB+CB=n,则梯形EFBC的面积等于—;若AE+AF=n,则△AEF的面积等于?
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/12 03:42:04
![如图6,在△ABC中,∠ABC和∠ACB的平分线相交于点O,过O点作EF//BC,交AB于E,交AC于F,从点O作OD⊥AB于D,OD=m若CE+FB+CB=n,则梯形EFBC的面积等于—;若AE+AF=n,则△AEF的面积等于?](/uploads/image/z/8839371-3-1.jpg?t=%E5%A6%82%E5%9B%BE6%2C%E5%9C%A8%E2%96%B3ABC%E4%B8%AD%2C%E2%88%A0ABC%E5%92%8C%E2%88%A0ACB%E7%9A%84%E5%B9%B3%E5%88%86%E7%BA%BF%E7%9B%B8%E4%BA%A4%E4%BA%8E%E7%82%B9O%2C%E8%BF%87O%E7%82%B9%E4%BD%9CEF%2F%2FBC%2C%E4%BA%A4AB%E4%BA%8EE%2C%E4%BA%A4AC%E4%BA%8EF%2C%E4%BB%8E%E7%82%B9O%E4%BD%9COD%E2%8A%A5AB%E4%BA%8ED%2COD%3Dm%E8%8B%A5CE%2BFB%2BCB%3Dn%2C%E5%88%99%E6%A2%AF%E5%BD%A2EFBC%E7%9A%84%E9%9D%A2%E7%A7%AF%E7%AD%89%E4%BA%8E%E2%80%94%EF%BC%9B%E8%8B%A5AE%2BAF%3Dn%2C%E5%88%99%E2%96%B3AEF%E7%9A%84%E9%9D%A2%E7%A7%AF%E7%AD%89%E4%BA%8E%3F)
xTnF~@\I"o(V#zVؑ:n\#ׇ%^CCr7L{`:/G9=
Cˠ?=~P4K.:y@%ee"mI47F913u&bαcg
s,xw ToMm.k!_b^K:c?oUOVZq;Q>_w?X߀)vK/+VmW?6˕b~|C)pC24AkۛNĒ%MNɴ&Sh.崭ʚULZXTATj jJRU;]lA4.%WGqIB.ʌҀS弔5KN
vAKH..z+qo4yߛΜ