# How to find the trigonometric ratios based on reference angle

**In this video we will learn to find the trigonometric ratios based on reference angle.**

**There is a simple process Keep it in Mind – Now lets see this video**

**Did you take you notebook and pen ? Good !**

**Yeah ! how was it ? that’s all !**

**What did we learn?**

**1. First draw the right angled triangle.**

**2. Locate the angles & sides as Perpendicular, Hypotenuse & Base.**

**3. Use Pythagoras Theorem to find out the missing one it may be perpendicular, base or may be hypotenuse.**

**4. Take the reference angle and find out the trigonometric ratios one by one !**

**That’s all simple ! Right ?
**

**Here are some few problems listed please try to solve these problems !**

**After completion of these all problems now lets watch another video !**

**5. Solving Trigonometric Expression From Given Relation**

**6. Solving Trigonometric Expression Using Pythagoras Theorem **

**7. Trigonometric Ratios Verifying Problems**

**8. Trigonometric Ratios of 45 Degree**

**9. Trigonometric Ratios of 30 Degree**

**10. Trigonometric Ratios of 60 Degree**

**11. Trigonometric Ratios of 0 Degree**

**12. Trigonometric Ratios of 90 Degree**

**13. Trigonometry Tables – How to Remember and Write Them If You Know One !**

**14. Trigonometric Ratios – Solving Trigonometric Expression Using Trigonometry Table -Model 1**

**15. Trigonometric Ratios – Solving Problems Using Trigonometry Table – Model 2**

**16. Trigonometric Ratios- Solving Trigonometric Expression -Angle Related Problems- Model 3**

**17. Trigonometric Ratios -Finding the Value of Angle – Angle Related Problems – Model 4**

**18. Trigonometric Ratios -Finding the Value of Angle from Given Relation-Model 5**

**19. Trigonometric Ratios- Finding the Angle & Value of Trigonometric Expression-Model 6**

**20. Trigonometric Ratios – Finding the Value of Angle By Dividing Numerator & Denominator – Model 7**

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