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Outline
Geometry Exercises
Applications of 1/2ab sinC
Geometry Exercises
Author:
Healey Lee
Applications of 1/2ab sinC
Fun question (1)
Fun question(2)
Use area of triangles to prove cosine formula
Geometry problem (1)
two Angle bisectors of same length?
Geometry problem (2)
Next
Fun question (1)
New Resources
【案例】2018年全国1卷理科12题
柱體建築師
拼砌四邊形
兩組對邊相等和有直角的四邊形
兩位數除以一位數（二）
Discover Resources
練習
Proof35 高士哲
轨迹方程
同旁內角---垂直平行綫
定积分的概念（移动端）的副本
Discover Topics
Area
Rational Numbers
Integers
Cone
Cylinder
