如图所示,矩形ABCD的长为10,宽为6,点E、F将AC三等分,则△BEF的面积是______. 魔方格解题如下:矩形ABCD中,∠ABC=90°,AB=10,BC=6;∴S△ABC=1/2AB*BC=30.∵E、F是AC的三等分点,∴AE=EF=FC;∴S△AEB=S△EFB=S
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/04 22:17:28
![如图所示,矩形ABCD的长为10,宽为6,点E、F将AC三等分,则△BEF的面积是______. 魔方格解题如下:矩形ABCD中,∠ABC=90°,AB=10,BC=6;∴S△ABC=1/2AB*BC=30.∵E、F是AC的三等分点,∴AE=EF=FC;∴S△AEB=S△EFB=S](/uploads/image/z/9330915-3-5.jpg?t=%E5%A6%82%E5%9B%BE%E6%89%80%E7%A4%BA%2C%E7%9F%A9%E5%BD%A2ABCD%E7%9A%84%E9%95%BF%E4%B8%BA10%2C%E5%AE%BD%E4%B8%BA6%2C%E7%82%B9E%E3%80%81F%E5%B0%86AC%E4%B8%89%E7%AD%89%E5%88%86%2C%E5%88%99%E2%96%B3BEF%E7%9A%84%E9%9D%A2%E7%A7%AF%E6%98%AF______%EF%BC%8E+%E9%AD%94%E6%96%B9%E6%A0%BC%E8%A7%A3%E9%A2%98%E5%A6%82%E4%B8%8B%EF%BC%9A%E7%9F%A9%E5%BD%A2ABCD%E4%B8%AD%2C%E2%88%A0ABC%3D90%C2%B0%2CAB%3D10%2CBC%3D6%EF%BC%9B%E2%88%B4S%E2%96%B3ABC%3D1%2F2AB%2ABC%3D30%EF%BC%8E%E2%88%B5E%E3%80%81F%E6%98%AFAC%E7%9A%84%E4%B8%89%E7%AD%89%E5%88%86%E7%82%B9%2C%E2%88%B4AE%3DEF%3DFC%EF%BC%9B%E2%88%B4S%E2%96%B3AEB%3DS%E2%96%B3EFB%3DS)
xTnPB2/LCO[R$~A]1&^1b͜M.Ita[L
(RCc&.؋9'G7ǒW엋6]ԥdjٯ>t]M!;#R+!{gRu~ٛgv$_uBn4
Q:r&ѳ "uj=Џ/)!`7 &@zflݹӲ(8IqeXxOٵՐP,1}>U1);$#V+YqDͯO3YMɓO2K2!DZ՜hTә(59CYxj:2tAY2Q