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纵观2011年各地中考试题中的应用题,有不少数学问题越来越贴近生活,而且还需要借助于“解直角三角形”的知识,下面介绍四种在中考题中常见的利用“解直角三角形”求线段长的方法.一、一测点和一角度求线段的方法(2011年潍坊市中考题)今年“五一”假期,某数学活动小组组织一次登山活动,他们从山脚下A点出发沿斜坡AB到达B点,再从B点沿斜坡BC到
Throughout the examination questions in 2011 around the application questions, there are many mathematical problems more and more close to life, but also need to help with the “right-angle triangle” knowledge, here are four common in the examination questions in the use of First, a measuring point and angle for line method (Weifang City 2011 senior high school entrance examination questions) This year “51 ” holiday, a math group organized a mountaineering activities, They start from point A at the foot of the mountain and reach point B along slope AB and then along slope BC from point B.