Trigonometric Ratios of Special Angles.pptx

No copyright infringement intended. For educational purposes only.

1. Kazandra Aligato, 9-St. Anne Math Q4M1 OF SPECIAL ANGLES TRIGONOMETRIC RATIOS OF SPECIAL ANGLES TRIGONOMETRIC RATIOS

2. Let us recall our previous lesson in Quarter 3. REVIEW REVIEW

3. WHAT SHOULD WE KNOW ABOUT TRIGONOMETRIC RATIOS? WHAT SHOULD WE KNOW ABOUT TRIGONOMETRIC RATIOS?

4. TRIGONOMETRIC RATIOS In a right triangle, there are six trigonometric ratios that can be derived using the 3 sides of the right triangle namely: opposite, adjacent and hypotenuse including the reference angle, 0, theta itself.

5. 6 TRIGONOMETRIC RATIOS

6. the trigonometric function that is equal to the ratio of the side opposite a given angle (in a right triangle) to the hypotenuse .

7. the trigonometric function that is equal to the ratio of the side adjacent to an acute angle (in a right-angled triangle) to the hypotenuse.

8. the ratio of the length of the opposite side to that of the adjacent side.

9. the ratio of the hypotenuse (in a right-angled triangle) to the side opposite an acute angle; the reciprocal of sine.

10. r atio of the hypotenuse to the adjacent; reciprocal of cosine

11. the ratio of the side (other than the hypotenuse) adjacent to a particular acute angle to the side opposite the angle.

12. Opposite and adjacent sides are interchangeable anytime depending on where the reference angle, , lies like the one on the right side.   REMEMBER!

13. CONTINUATION….

14. “Life is like Math. If it goes too easy, something is wrong.” —ANONYMOUS

15. THANK YOU!