∠a=∠b=1/2∠APB(线段的字母必须大写的),求证L‖m(完整的解答过程)_____________ L(直线)\a\ P (为中间) /____/b________ m(直线)
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/29 03:10:26
![∠a=∠b=1/2∠APB(线段的字母必须大写的),求证L‖m(完整的解答过程)_____________ L(直线)\a\ P (为中间) /____/b________ m(直线)](/uploads/image/z/11388997-37-7.jpg?t=%E2%88%A0a%3D%E2%88%A0b%3D1%2F2%E2%88%A0APB%28%E7%BA%BF%E6%AE%B5%E7%9A%84%E5%AD%97%E6%AF%8D%E5%BF%85%E9%A1%BB%E5%A4%A7%E5%86%99%E7%9A%84%29%2C%E6%B1%82%E8%AF%81L%E2%80%96m%28%E5%AE%8C%E6%95%B4%E7%9A%84%E8%A7%A3%E7%AD%94%E8%BF%87%E7%A8%8B%29_____________+L%28%E7%9B%B4%E7%BA%BF%29%5Ca%5C+P+%28%E4%B8%BA%E4%B8%AD%E9%97%B4%29+%2F____%2Fb________+m%28%E7%9B%B4%E7%BA%BF%29)
∠a=∠b=1/2∠APB(线段的字母必须大写的),求证L‖m(完整的解答过程)_____________ L(直线)\a\ P (为中间) /____/b________ m(直线)
∠a=∠b=1/2∠APB(线段的字母必须大写的),求证L‖m(完整的解答过程)
_____________ L(直线)
\a
\ P (为中间)
/
____/b________ m(直线)
∠a=∠b=1/2∠APB(线段的字母必须大写的),求证L‖m(完整的解答过程)_____________ L(直线)\a\ P (为中间) /____/b________ m(直线)
楼主画这个图很累吧,不过好在根据已往经验还是看懂了
作直线n,使得n//m,利用内错角相等,即∠NPB=∠B=1/2∠APB,所以∠APN=∠a=1/2∠APB,所以直线平行(顺便说一下,题目条件可以减弱为∠a+∠b=∠APB)
如图:
A_____________ L
\a
N_P____________ n
/b
B_____________ m