1) Use Law of Sine on triangles AED and ACD

BeLe · 2011-11-16 20:18:46Z

1) Use Law of Sine on triangles AED and ACD简介

来源: BeLe 于 2011-11-16 20:18:46 [档案] [博客] [旧帖] [给我悄悄话] 本文已被阅读： 0 次 (161 bytes)

回答: 用Law of sine或cosine怎样做这题？由 xyz 于 2011-11-16 20:00:38

2) Use AE = AC and the fact that both triangles AED and ACD have a common side AD to get a trigonometric equation

3) Solve the trig equation.

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