Search
Google ClassroomGoogle Classroom
GeoGebraGeoGebra Classroom

Outline

  1. S5 2D Trigonometry
    1. law of sines (proof)
    2. law of cosines (proof)
    3. Ambiguity of SSA
    4. Law of Sines (SSA Case)
    5. Law of Sines - Ambiguous Case
    6. Heron's Formula 希羅公式
    7. 10.2 Angles of elevation and depression(仰角和俯角)

S5 2D Trigonometry

Author:tkyggb
Topic:Trigonometry
S5 2D Trigonometry

  • law of sines (proof)

  • law of cosines (proof)

  • Ambiguity of SSA

  • Law of Sines (SSA Case)

  • Law of Sines - Ambiguous Case

  • Heron's Formula 希羅公式

  • 10.2 Angles of elevation and depression(仰角和俯角)

Next
law of sines (proof)

New Resources

  • 美國國旗 (Claude 版)
  • 直角坐標平面上的旋轉變換
  • 長方體平面投影 (Codex版)
  • 三半圓間的相切圓(Codex╱2026.10.07)
  • 美國國旗 (Codex, 2026.10.06)

Discover Resources

  • 判斷球體 7
  • 觀察圖中有哪些角會相等
  • 利用对称求线段和最值(移动端)
  • 勝者即正義,可愛即正義~(可用Ctrl+滑鼠滾輪放大界面)
  • 任意角的三角函数

Discover Topics

  • Root
  • Real Numbers
  • Tree Diagrams
  • Isosceles Triangles
  • Geometric Transformations
AboutPartnersHelp Center
Terms of ServicePrivacyLicense
Graphing CalculatorCalculator SuiteMath Resources

Download our apps here:

Download_on_the_App_Store_Badge_US-UK_RGB_blk_4SVG_092917

© 2026 GeoGebra®