Right Triangles and Geometry

1. Pythagorean theorem

2. Pythagorean theorem proofs

3. Special right triangles

   • 30-60-90 triangle rule

   

4. Introduction to the trigonometric ratios

   

   Mnemonic - SOH CAH TOA

   Sine - Opposite / Hypotenuse

   Cosine - Adjacent / Hypotenuse

   Tangent - Opposite / Adjacent

   

5. Solving for a side in a right triangle using the trigonometric ratios:

6. Solving for an angle in a right triangle using the trigonometric ratios

7. Modeling with right triangles

8. Trigonometric ratios & similarity

9. Sine & cosine of complementary angles

10. Law of sines

11. Law of cosines C^2^ = A^2^ + B^2^ - 2.A.B.cos **Θ**

12. Solving general triangles