课程咨询
美国本科留学资料领取

扫码添加助教

免费领取

备考资料大礼包

扫码关注公众号

SAT数学知识讲解:三角形(1)

2013-08-09 16:33:54来源:互联网

  Special Triangles

  Special triangles are “special” not because they get to follow fewer rules than other triangles but because they get to follow more. Each type of special triangle has its own special name: isosceles, equilateral, and right. Knowing the properties of each will help you tremendously, humongously, a lot, on the SAT.

  But first we have to take a second to explain the markings we use to describe the properties of special triangles. The little arcs and ticks drawn in the figure below show that this triangle has two sides of equal length and three equal angle pairs. The sides that each have one tick through them are equal, as are the sides that each have two ticks through them. The angles with one little arc are equal to each other, the angles with two little arcs are equal to each other, and the angles with three little arcs are all equal to each other.

SAT数学知识讲解:三角形(1)

  Isosceles Triangles

  In ancient Greece, Isosceles was the god of triangles. His legs were of perfectly equal length and formed two opposing congruent angles when he stood up straight. Isosceles triangles share many of the same properties, naturally. An isosceles triangle has two sides of equal length, and those two sides are opposite congruent angles. These equal angles are usually called as base angles. In the isosceles triangle below, side a = b and

SAT水平能力测试【0元免费测试】

本文关键字: SAT数学 SAT数学知识讲解

美本留学资料大礼包

微信扫描二维码 回复【美本资料】

机考SATCB官方样题|可汗练习题|AP全科大纲/备考资料包

更多资料
更多>>
更多内容

添加美本助教号

自动领取备考资料大礼包

1. 打开手机微信【扫一扫】,识别上方二维码;
2.添加【美本助教】,自动领取留学备考资料大礼包。

可汗学院新SAT题目完整版

微信扫描下方二维码 即可获取

SAT1500分录播课(旗舰版+1对1) 托福精讲录播课(旗舰版) 托福8-10人直播VIP小班
更多>>
更多公开课>>

2024美本留学资料免费领取

微信添加美本助教

新东方美本助教
更多>>
更多资料

添加新东方在线美本助教号

自动领取备考资料大礼包

1. 打开手机微信【扫一扫】,识别上方二维码;
2.添加【Ella助教】,自动领取留学备考资料大礼包。