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[今日一题]104：几何专题，求角C是多少度角？
[今日一题]104：几何专题： 如图△ABC中，已知∠B=45°,∠ADC=60°,BD＝2，DC=4, 求∠C多少度角？
今日一题几何专题5/18
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App01:01![[今日一题]102:求三角形面积？](http://p26-sign.bdxiguaimg.com/tos-cn-i-0026/o8AwAtKvzADlfA2BLwh1GKEBeCCIUDCgLdpToA~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=2025010508454734F3461DAE5ED24ED341&requestFrom=704&version_code=80402&x-expires=1767573947&x-signature=ebhKEPQWsAcy36LEAkTENiE8Zhc%3D)
App01:02![[今日一题]103,几何专题，求角B是多少度角？](http://p26-sign.bdxiguaimg.com/tos-cn-i-0004/oshAICANV7uEBDARbteluAfviAQz7DgAAbObyC~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=2025010508454734F3461DAE5ED24ED341&requestFrom=704&version_code=80402&x-expires=1767573947&x-signature=P9DlTR7Yxv0EJOKqx2qNnh92t3s%3D)
App01:09![[今日一题]104：几何专题，求角C是多少度角？](http://p3-sign.bdxiguaimg.com/tos-cn-i-pk90l89vgd/d2be4f9979f94971bc40e4c8e3106a58~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=2025010508454734F3461DAE5ED24ED341&requestFrom=704&version_code=80402&x-expires=1767573947&x-signature=wjSkeoBKtDXUKL9pKsgCTHu6MXc%3D)
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App01:06![[今日一题]107题，几何专题，求矩形面积是多少？](http://p3-sign.bdxiguaimg.com/tos-cn-i-pk90l89vgd/795f8926e9d3438f8f7c52348fb011e6~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=2025010508454734F3461DAE5ED24ED341&requestFrom=704&version_code=80402&x-expires=1767573947&x-signature=mhlXVpxO%2BaUIjmIANzoYozFpx2E%3D)
App01:04![[今日一题]108：几何专题，求阴影部分面积是多少？蝴蝶模型](http://p26-sign.bdxiguaimg.com/tos-cn-i-pk90l89vgd/2ebfe7f02b0b44d992fa83ce118b5f33~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=2025010508454734F3461DAE5ED24ED341&requestFrom=704&version_code=80402&x-expires=1767573947&x-signature=aYkZPKggnzvpfRwE21JcTQjLfkk%3D)
App01:07![[今日一题]109：几何专题，燕尾模型求四边形ABCD面积是多少？](http://p26-sign.bdxiguaimg.com/tos-cn-i-pk90l89vgd/3471d8d32b804f67af307af75f6df934~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=2025010508454734F3461DAE5ED24ED341&requestFrom=704&version_code=80402&x-expires=1767573947&x-signature=Gjs8wVggTRctSM5g4tXKmU7ftJw%3D)
App01:07![[今日一题]110：几何专题，求△ADE面积是多少？](http://p3-sign.bdxiguaimg.com/tos-cn-i-pk90l89vgd/744d281f5508442381083c08f2f63c1c~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=2025010508454734F3461DAE5ED24ED341&requestFrom=704&version_code=80402&x-expires=1767573947&x-signature=DyZ1XGB4EJtBkikq72KamVjsMsM%3D)
App01:03![[今日一题]111：几何专题，求矩形ABCD面积是多少？](http://p26-sign.bdxiguaimg.com/tos-cn-i-pk90l89vgd/55f6ba7318614660963207f33a83f6f2~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=2025010508454734F3461DAE5ED24ED341&requestFrom=704&version_code=80402&x-expires=1767573947&x-signature=yVZY5g%2FR4Fg74clI4EPNitD%2FpIM%3D)
App01:03![[今日一题]112：几何专题，求∠B是多少度角？@](http://p3-sign.bdxiguaimg.com/tos-cn-i-pk90l89vgd/f1a9c6dd28084260a77dc4caaa523536~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=2025010508454734F3461DAE5ED24ED341&requestFrom=704&version_code=80402&x-expires=1767573947&x-signature=VMdA2uBXtkcGkxG%2Bnnl30iEXxSE%3D)
App01:03![[今日一题]113：几何专题，求阴影部分面积是多少？](http://p3-sign.bdxiguaimg.com/tos-cn-i-pk90l89vgd/94db7001574341cca50d22ec4f1b5551~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=2025010508454734F3461DAE5ED24ED341&requestFrom=704&version_code=80402&x-expires=1767573947&x-signature=m3NAaq5vuDLNbxSReqHzQlAI7mE%3D)
App01:22![[今日一题]114：几何专题，求度角？](http://p3-sign.bdxiguaimg.com/tos-cn-i-pk90l89vgd/ca1c7b157db641948668a3fc5f69331f~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=2025010508454734F3461DAE5ED24ED341&requestFrom=704&version_code=80402&x-expires=1767573947&x-signature=NdDWU6DKytlpwyJJDPq%2Fzm3DorA%3D)
App01:03![[今日一题]115：几何专题，求∠B是多少度角？](http://p26-sign.bdxiguaimg.com/tos-cn-i-pk90l89vgd/ce7d8effdd1e4758b80e06f1d017b719~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=2025010508454734F3461DAE5ED24ED341&requestFrom=704&version_code=80402&x-expires=1767573947&x-signature=cCa12higb%2B%2BYdNQK%2F0sirSAzBlI%3D)
App01:03![[今日一题]116：几何专题，求四边形ABCD的面积是多少？](http://p3-sign.bdxiguaimg.com/tos-cn-i-pk90l89vgd/9bf6965b89eb4db3a4f9d0f7866fac53~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=2025010508454734F3461DAE5ED24ED341&requestFrom=704&version_code=80402&x-expires=1767573947&x-signature=uT7tH%2BtaqQ1Du3KKowseefZhuRA%3D)
App01:04![[今日一题]117：几何专题，求阴影部分面积是多少？](http://p3-sign.bdxiguaimg.com/tos-cn-i-pk90l89vgd/a789e653d64244f99a2ae09b0c5d403e~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=2025010508454734F3461DAE5ED24ED341&requestFrom=704&version_code=80402&x-expires=1767573947&x-signature=%2Bgv6n%2FRHly4%2BSyGmF7sLmwyUY38%3D)
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