小张同学观察如图1所示的北斗七星图,小张同学把北斗七星:摇光、开阳、玉衡、天权、天玑、天璇、天枢按图2分别标为点A、B、C、D、E、F、G,然后将点A、B、C、D、E、F、G顺次首尾连接,发现AG恰好经过点C,且∠B-∠DCG=115°,∠B-∠D=10°,若AG//EF,则∠E=m°,这里的m=________ .
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/7/f4b9809d-e332-484a-a7a8-6b3a9d66e49d.png?resizew=560)
更新时间:2020-07-06 23:29:36
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【推荐1】将一个含有30°角的直角三角板如图所示放置.其中,含30°角的顶点落在直线a上,含90°角的顶点落在直线b上.若
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【推荐2】如图,
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【推荐1】将一副三角板如图放置,
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