The server is under maintenance between 08:00 to 12:00 (GMT+08:00), and please visit later.
We apologize for any inconvenience caused
Login  | Sign Up  |  Oriprobe Inc. Feed
China/Asia On Demand
Journal Articles
Laws/Policies/Regulations
Companies/Products
Bookmark and Share
zhi jiao san jiao xing po jie pao wu xian zhong de ping xing si bian xing
Author(s): 
Pages: 43-45
Year: Issue:  4
Journal: ZHONGXUE SHUXUE ZAZHI(CHUZHONG BAN)

Abstract: 在直角坐标系内,已知平行四边形的两个顶点,确定另外两顶点(一顶点在抛物线上,另一顶点在直线上)的类型,是抛物线中一类比较综合的题目,也颇受中考命题者的青睐。笔者通过构造直角三角形,利用平移和全等的知识有效地结合了平行四边形的两个判定(一组对边平行且相等的四边形是平行四边形和对角线互相平分的四边形是平行四边形),实现了对这一类型问题的轻松解答。试举三例,帮助读者体会在解决问题中直角三角形是如何发挥作用的。
Related Articles
No related articles found