天气预报 > 教育 > 勾股定理是几年级学的
勾股定理是几年级学的
更新时间: 2021-02-05 15:50:45  

1、初二上学期第一单元开始学习勾股定理。八年级下册,第十九章《勾股定理》(沪科版)也就是八下的第三章,期中考试一般就考到这里。P50. 19.1勾股定理P58. 19.2勾股定理逆定理P64.小结。

2、勾股定理是一个基本的几何定理,指直角三角形的两条直角边的平方和等于斜边的平方。

3、勾股定理,直角三角形的两条直角边的平方和等于斜边的平方.

4、A2+B2=C2

5、C=√(A2+B2)

6、√(1202+902)=√22500=√1502=150

关键词: 勾股定理 年级

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