CK-12 Geometry - Second Edition

http://www.ck12.org Chapter 8. Right Triangle Trigonometry What is Trigonometry? The word trigonometry comes from two words mean ...

8.5. Tangent, Sine and Cosine http://www.ck12.org Example 1:Find the sine, cosine and tangent ratios of^6 A. Solution:First, we ...

http://www.ck12.org Chapter 8. Right Triangle Trigonometry Solution:This is a special right triangle, a 30-60-90 triangle. So, i ...

8.5. Tangent, Sine and Cosine http://www.ck12.org Solution:We are given the hypotenuse, so we would need to use the sine to find ...

http://www.ck12.org Chapter 8. Right Triangle Trigonometry Angle of Elevation:The angle measure from the horizon or horizontal l ...

8.5. Tangent, Sine and Cosine http://www.ck12.org tanD=?? sinF=?? tanF=?? cosF=?? sinD=?? cosD=?? From questions 1-6, we can c ...

http://www.ck12.org Chapter 8. Right Triangle Trigonometry 18. 19. 20. 21. 22. Kristin is swimming in the ocean and notices a c ...

8.5. Tangent, Sine and Cosine http://www.ck12.org The angle of depression from the top of an apartment building to the base of ...

http://www.ck12.org Chapter 8. Right Triangle Trigonometry 8.6 Inverse Trigonometric Ratios Learning Objectives Use the inverse ...

8.6. Inverse Trigonometric Ratios http://www.ck12.org Inverse Trigonometric Ratios The wordinverseis probably familiar to you. I ...

http://www.ck12.org Chapter 8. Right Triangle Trigonometry Solution:In reference to^6 A, we are given theoppositeleg and theadja ...

8.6. Inverse Trigonometric Ratios http://www.ck12.org AB: Use the Pythagorean Theorem. 242 +AB^2 = 302 576 +AB^2 = 900 AB^2 = 32 ...

http://www.ck12.org Chapter 8. Right Triangle Trigonometry m^6 A: Use Triangle Sum Theorem 62 ◦+ 90 ◦+m^6 A= 180 ◦ m^6 A= 28 ◦ E ...

8.6. Inverse Trigonometric Ratios http://www.ck12.org Solution:First, draw a picture. The angle that the sun hits the flagpole i ...

http://www.ck12.org Chapter 8. Right Triangle Trigonometry 2. 3. 4. 5. 6. Let^6 Abe an acute angle in a right triangle. Findm^6 ...

8.6. Inverse Trigonometric Ratios http://www.ck12.org 11. 12. 13. 14. 15. 16.WritingExplain when to use a trigonometric ratio to ...

http://www.ck12.org Chapter 8. Right Triangle Trigonometry Tommy was solving the triangle below and made a mistake. What did he ...

8.6. Inverse Trigonometric Ratios http://www.ck12.org sin 45◦=^3 3 √ 2 = √ 2 2 cos 45◦=^3 3 √ 2 = √ 2 2 tan 45◦=^33 = 1 The t ...

http://www.ck12.org Chapter 8. Right Triangle Trigonometry 8.7 Extension: Laws of Sines and Cosines Learning Objectives Identif ...

8.7. Extension: Laws of Sines and Cosines http://www.ck12.org Now, use the Law of Sines to set up ratios foraandb. sin 57◦ a = s ...