Geometry/Notes 7.4
- 1. Trigonometry
- 2. • How can I find trigonometric ratios for right triangles?
- 3. • About triangle measurements • Uses ratios of sides of a triangle to describe an angle • Sine, Cosine and Tangent • Abbreviated as sin, cos and tan
- 4. • Which side is adjacent to angle B? • Which side is opposite to angle B? • Where is the hypotenuse? A c b C a B
- 5. • A c b C a B
- 6. • A c b C a B
- 7. • A c b C a B
- 8. •
- 9. • Find sin, cos, and tan for B B 13 5 C 12 A
- 10. • Find sin, cos and tan for A and B A 25 7 C 24 B
- 11. • Worksheet
- 12. • How can I use trigonometry to solve triangle problems?
- 13. • Calculator • (typically 4 places, round to the nearest ten-thousandth • sin 45 • cos 36 • tan 23
- 14. •
- 17. • A plane is one mile above sea level when it begins to climb at a constant angle of 3° for the next 60 ground miles. About how far above sea level is the plane after its climb?
- 18. • To guard against a fall, a ladder should make an angle of 75° or less with the ground. • A. What is the maximum height that a 20-foot ladder can reach safely? • B. How far from the building is the base of the ladder at maximum height?
- 19. • Worksheet