三角形面积都有哪些计算公式专指不规则的三角形,除了底乘高除2,两边乘积乘夹角正弦值除2,还有个什么公式来
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![三角形面积都有哪些计算公式专指不规则的三角形,除了底乘高除2,两边乘积乘夹角正弦值除2,还有个什么公式来](/uploads/image/z/1522096-16-6.jpg?t=%E4%B8%89%E8%A7%92%E5%BD%A2%E9%9D%A2%E7%A7%AF%E9%83%BD%E6%9C%89%E5%93%AA%E4%BA%9B%E8%AE%A1%E7%AE%97%E5%85%AC%E5%BC%8F%E4%B8%93%E6%8C%87%E4%B8%8D%E8%A7%84%E5%88%99%E7%9A%84%E4%B8%89%E8%A7%92%E5%BD%A2%2C%E9%99%A4%E4%BA%86%E5%BA%95%E4%B9%98%E9%AB%98%E9%99%A42%2C%E4%B8%A4%E8%BE%B9%E4%B9%98%E7%A7%AF%E4%B9%98%E5%A4%B9%E8%A7%92%E6%AD%A3%E5%BC%A6%E5%80%BC%E9%99%A42%2C%E8%BF%98%E6%9C%89%E4%B8%AA%E4%BB%80%E4%B9%88%E5%85%AC%E5%BC%8F%E6%9D%A5)
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