详解“勾股定理”4类大题!
<p style="border: 0px; margin: 0px; padding: 10px 0px 20px; font-size: 16px; color: rgb(25, 25, 25); font-family: 'PingFang SC', Arial, 微软雅黑, 宋体, simsun, sans-serif; line-height: 30px;"> “范老师,这个三角形的辅助线怎么画?这个面积怎么求啊?”</p><p style="border: 0px; margin: 0px; padding: 10px 0px 20px; font-size: 16px; color: rgb(25, 25, 25); font-family: 'PingFang SC', Arial, 微软雅黑, 宋体, simsun, sans-serif; line-height: 30px;"> “范老师,这个直角三角形的直角边怎么算?怎么用勾股定理啊?”</p><p style="border: 0px; margin: 0px; padding: 10px 0px 20px; font-size: 16px; color: rgb(25, 25, 25); font-family: 'PingFang SC', Arial, 微软雅黑, 宋体, simsun, sans-serif; line-height: 30px;"> ……</p><p style="border: 0px; margin: 0px; padding: 10px 0px 20px; font-size: 16px; color: rgb(25, 25, 25); font-family: 'PingFang SC', Arial, 微软雅黑, 宋体, simsun, sans-serif; line-height: 30px;"> 最近同学们关于“勾股定理”的各种问题层出不穷,真是有些伤脑筋~</p><p style="border: 0px; margin: 0px; padding: 10px 0px 20px; font-size: 16px; color: rgb(25, 25, 25); font-family: 'PingFang SC', Arial, 微软雅黑, 宋体, simsun, sans-serif; line-height: 30px;"> 其实,从我多年的教学经验来看,勾股定理只考4个点,掌握了这四个点,关于“勾股定理”的题目基本上就不会丢分了。</p><p style="border: 0px; margin: 0px; padding: 10px 0px 20px; font-size: 16px; color: rgb(25, 25, 25); font-family: 'PingFang SC', Arial, 微软雅黑, 宋体, simsun, sans-serif; line-height: 30px; text-align: center;"> </p><p style="border: 0px; margin: 0px; padding: 10px 0px 20px; font-size: 16px; color: rgb(25, 25, 25); font-family: 'PingFang SC', Arial, 微软雅黑, 宋体, simsun, sans-serif; line-height: 30px;"> 当然,对于刚接触的同学来说,确实是有难度的,甚至于连辅助线都不会做,只记得一个干巴巴的公式,这样的话,一遇到考题就完全没辙了。</p><p style="border: 0px; margin: 0px; padding: 10px 0px 20px; font-size: 16px; color: rgb(25, 25, 25); font-family: 'PingFang SC', Arial, 微软雅黑, 宋体, simsun, sans-serif; line-height: 30px;"> 为了帮助同学们更好地学习,我把勾股定理的必考点做了整理,并举了典型的例子进行分析。果然,解决了同学们的学习障碍。</p><p style="border: 0px; margin: 0px; padding: 10px 0px 20px; font-size: 16px; color: rgb(25, 25, 25); font-family: 'PingFang SC', Arial, 微软雅黑, 宋体, simsun, sans-serif; line-height: 30px; text-align: center;"> </p><p style="border: 0px; margin: 0px; padding: 10px 0px 20px; font-size: 16px; color: rgb(25, 25, 25); font-family: 'PingFang SC', Arial, 微软雅黑, 宋体, simsun, sans-serif; line-height: 30px; text-align: center;"> </p><p style="border: 0px; margin: 0px; padding: 10px 0px 20px; font-size: 16px; color: rgb(25, 25, 25); font-family: 'PingFang SC', Arial, 微软雅黑, 宋体, simsun, sans-serif; line-height: 30px; text-align: center;"> </p><p style="border: 0px; margin: 0px; padding: 10px 0px 20px; font-size: 16px; color: rgb(25, 25, 25); font-family: 'PingFang SC', Arial, 微软雅黑, 宋体, simsun, sans-serif; line-height: 30px; text-align: center;"> </p><p style="border: 0px; margin: 0px; padding: 10px 0px 20px; font-size: 16px; color: rgb(25, 25, 25); font-family: 'PingFang SC', Arial, 微软雅黑, 宋体, simsun, sans-serif; line-height: 30px; text-align: center;"> </p><p style="border: 0px; margin: 0px; padding: 10px 0px 20px; font-size: 16px; color: rgb(25, 25, 25); font-family: 'PingFang SC', Arial, 微软雅黑, 宋体, simsun, sans-serif; line-height: 30px; text-align: center;"> </p><p style="border: 0px; margin: 0px; padding: 10px 0px 20px; font-size: 16px; color: rgb(25, 25, 25); font-family: 'PingFang SC', Arial, 微软雅黑, 宋体, simsun, sans-serif; line-height: 30px; text-align: center;"> </p><p style="border: 0px; margin: 0px; padding: 10px 0px 20px; font-size: 16px; color: rgb(25, 25, 25); font-family: 'PingFang SC', Arial, 微软雅黑, 宋体, simsun, sans-serif; line-height: 30px; text-align: center;"> </p><p style="border: 0px; margin: 0px; padding: 10px 0px 20px; font-size: 16px; color: rgb(25, 25, 25); font-family: 'PingFang SC', Arial, 微软雅黑, 宋体, simsun, sans-serif; line-height: 30px; text-align: center;"> </p><p style="border: 0px; margin: 0px; padding: 10px 0px 20px; font-size: 16px; color: rgb(25, 25, 25); font-family: 'PingFang SC', Arial, 微软雅黑, 宋体, simsun, sans-serif; line-height: 30px; text-align: center;"> </p><p style="border: 0px; margin: 0px; padding: 10px 0px 20px; font-size: 16px; color: rgb(25, 25, 25); font-family: 'PingFang SC', Arial, 微软雅黑, 宋体, simsun, sans-serif; line-height: 30px; text-align: center;"> </p><p style="border: 0px; margin: 0px; padding: 10px 0px 20px; font-size: 16px; color: rgb(25, 25, 25); font-family: 'PingFang SC', Arial, 微软雅黑, 宋体, simsun, sans-serif; line-height: 30px; text-align: center;"> </p><p style="border: 0px; margin: 0px; padding: 10px 0px 20px; font-size: 16px; color: rgb(25, 25, 25); font-family: 'PingFang SC', Arial, 微软雅黑, 宋体, simsun, sans-serif; line-height: 30px; text-align: center;"> </p><p style="border: 0px; margin: 0px; padding: 10px 0px 20px; font-size: 16px; color: rgb(25, 25, 25); font-family: 'PingFang SC', Arial, 微软雅黑, 宋体, simsun, sans-serif; line-height: 30px; text-align: center;"> </p><p style="border: 0px; margin: 0px; padding: 10px 0px 20px; font-size: 16px; color: rgb(25, 25, 25); font-family: 'PingFang SC', Arial, 微软雅黑, 宋体, simsun, sans-serif; line-height: 30px; text-align: center;"> </p><p style="border: 0px; margin: 0px; padding: 10px 0px 20px; font-size: 16px; color: rgb(25, 25, 25); font-family: 'PingFang SC', Arial, 微软雅黑, 宋体, simsun, sans-serif; line-height: 30px; text-align: center;"> </p><p style="border: 0px; margin: 0px; padding: 10px 0px 20px; font-size: 16px; color: rgb(25, 25, 25); font-family: 'PingFang SC', Arial, 微软雅黑, 宋体, simsun, sans-serif; line-height: 30px; text-align: center;"> </p><p style="border: 0px; margin: 0px; padding: 10px 0px 20px; font-size: 16px; color: rgb(25, 25, 25); font-family: 'PingFang SC', Arial, 微软雅黑, 宋体, simsun, sans-serif; line-height: 30px; text-align: center;"> </p><p style="border: 0px; margin: 0px; padding: 10px 0px 20px; font-size: 16px; color: rgb(25, 25, 25); font-family: 'PingFang SC', Arial, 微软雅黑, 宋体, simsun, sans-serif; line-height: 30px; text-align: center;"> </p>
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