Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. If you continue browsing the site, you agree to the use of cookies on this website. See our User Agreement and Privacy Policy.

Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. If you continue browsing the site, you agree to the use of cookies on this website. See our Privacy Policy and User Agreement for details.

Like this presentation? Why not share!

- 5.3 The Sine Law by Mrs. LaPage 322 views
- Trigonometry ratios by Akhilesh Bhura 4775 views
- 5 5 Customary Units Dimensional Ana... by Middle School 1721 views
- 9.6 Circles by Middle School 1282 views
- Proportions And Percents by Middle School 1986 views
- Chapter 6 Section 3 Similar Figures by Middle School 3106 views

17,741 views

Published on

Chapter 11, Section 6: Sine, Cosine, and Tangent. Basic Trig ratios.

No Downloads

Total views

17,741

On SlideShare

0

From Embeds

0

Number of Embeds

9,064

Shares

0

Downloads

119

Comments

0

Likes

1

No embeds

No notes for slide

- 1. Review/Practice Trig Ratios Chapter 11 Section 6
- 2. What is the mnemonic devise that helps us remember the three basic trig ratios? SOH CAH TOA
- 3. What is the definition of the sine ratio? opposite leg sin A = hypotenuse
- 4. What is the definition of the cosine ratio? adjacent leg cos A = hypotenuse
- 5. What is the definition of the tangent ratio? opposite leg tan A = adjacent leg
- 6. What trigonometric ratio is needed to solve for x? x 15° 19 opposite leg tan A = adjacent leg
- 7. What trigonometric ratio is needed to solve for x? x 38° opposite leg 4.6 sin A = hypotenuse
- 8. What trigonometric ratio is needed to solve for x? x 52° 4.6 adjacent leg cos A = hypotenuse
- 9. Finding the Decimal or the Degree If you have a decimal and need the degree use INVERSE. Sin(-1), Cos(-1), Tan(-1) If you have a degree and need the decimal use the STANDARD. Sin, Cos, Tan
- 10. Find the angle whose tangent is approximately .3057 and round to the nearest degree. 17°
- 11. Find the angle whose sine is approximately .7986 and round to the nearest degree. 53°
- 12. Find the angle whose cosine is approximately .1564 and round to the nearest degree. 81°
- 13. Find the sine of 38 round o to four decimal places. .6157
- 14. Find the tangent of 80 o round to four decimal places. 5.6713
- 15. Find the cosine of 10 o round to four decimal places. .9848
- 16. Identify the trig function needed to solve: x cosine 41° 18
- 17. Show the evaluation needed to solve: x cos 41 18 41° = 1 x 18
- 18. Solve for x: cos 41 18 = 1 x x cos 41( x) = 18 41° 18 18 x= cos 41 x ≈ 23.85
- 19. Identify the trig function needed to solve: 68° x tangent 24
- 20. Show the evaluation needed to solve: 68° x tan 68 24 = 1 x 24
- 21. Solve for x: tan 68 24 = 1 x x 68° tan 68( x) = 24 24 24 x= tan 68 x ≈ 9.7
- 22. Identify the trig function needed to solve: 18.7 x sine 80°
- 23. Show the evaluation needed to solve: 18.7 x sin 80 x = 1 18.7 80°
- 24. Solve for x: sin 80 x = 1 18.7 18.7 x sin 80(18.7) = x 80° 18.42 ≈ x
- 25. Identify the trig function needed to solve: 8.1 cosine x° 3.5
- 26. Show the evaluation needed to solve: 8.1 3.5 cos x = 8.1 x° 3.5
- 27. Solve for x: 3.5 cos x = 8.1 8.1 −1 cos (3.5 / 8.1) = x x° 64.4° ≈ x 3.5
- 28. Identify the trig function needed to solve: x° 5.3 tangent 5.9
- 29. Show the evaluation needed to solve: x° 5.3 5.9 tan x = 5.3 5.9
- 30. Solve for x: 5.9 tan x = x° 5.3 5.3 −1 tan (5.9 / 5.3) = x 48° ≈ x 5.9
- 31. Finished! Finished! Finished! Be sure to know all of this for your test!

No public clipboards found for this slide

×
### Save the most important slides with Clipping

Clipping is a handy way to collect and organize the most important slides from a presentation. You can keep your great finds in clipboards organized around topics.

Be the first to comment