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:2024/11/06 15:40:11
xTnF~@\I"o(V#zVؑ:n\#ׇ%^CCr7L{`:/G9= C ˠ?=~P4K.:y@%ee"m I47F913u&bαcg s,x w 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} /λ^E0]a;QL9ry:c1:u H@':aN cB{(`GL."v-[WCyWGP*4z}~x olCꪛakCE",yRXhoDxcVoV39 w0" fꔠ"xNg 緗Gx^tNX8 Kw F z#-ΨYl٨4^ti!g`.7?