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长沙中考压轴：圆内三角形的外心轨迹与动点！直角三角与四点共圆
长沙压轴题：圆内三角形的外心轨迹与动点！三角形面积与四点共圆
海莱中考数学75/358
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App33:24![中考必备：“铅垂法”求三角形面积[更正：C（1，-2）]](http://p3-sign.bdxiguaimg.com/tos-cn-i-0026/1d04179977e74d05ace4a5e0e1dc35bc~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&biz_tag=list_custom%2Fnone&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=2025022706541975CCFB98C912AC9C5C6C&requestFrom=704&version_code=80402&x-expires=1772146460&x-signature=XT0Z2URb9pyK32kdcjW6eDsOKsg%3D)
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