The Tangent Ratio Geometry 9 1 What are
- Slides: 31
The Tangent Ratio Geometry 9 -1
What are the values of the unlabeled sides? Review
What are the values of the unlabeled sides? Review
New Material
Working in groups, one for each group • Ruler • Protractor • Calculator • Graph paper Get your supplies Ready
• If we have a 30° – 60° – 90° Triangle, of any size, and know one side, we can calculate the size of the other two sides. • Same for a 45° – 90° triangle • What about other more likely angles? Trig Investigation
• • • Draw one large right triangle Let the angles be 20°, 70° and 90° Label the angles and sides as shown B c A b a C Trig Investigation
• Measure all the sides in millimeters B c A b a C Trig Investigation
• Complete these ratios, using your calculator B c A b Trig Investigation a C
• How do all the groups in the class ratios compare? B c A b Trig Investigation a C
• Is there any significance to these numbers? 0. 94 B 0. 34 c 2. 74 A b Trig Investigation a C
• If the ratios are always the same, we should give them a better name than ratio a over b. What should we call them? Trig Investigation
Trig Definitions
Trig Ratios Sine
Trig Ratios Cosine
Trig Ratios Tangent
SOHCAHTOA There must be a shortcut to remember this. SOHCAHTOA Trig Ratios
Practice Problems
Practice Problems
Practice Problems
Example
Practice Problems
Practice Problems
Practice Problems
Practice Problems
Practice Problems
Practice Problems
Practice Problems
Practice Problems
Practice Problems
• Pages 473 – 475 • 12 – 20 even, 28, 48, 50, 67 - 69 Homework
- Insidan region jh
- Practice 9-2 sine and cosine ratios
- The tangent ratio is used for _____ triangles.
- Common internal tangent
- Internal tangent vs external tangent
- Secant tangent and angle measures
- Ratio for tangent
- Tan ratio
- Trigonometry ratio worksheet
- Sine ratio
- Practice 9-1 the tangent ratio answers
- Tangent ratio
- Pf3 molecular geometry
- 4 electron domains 2 lone pairs
- Bonding theories
- Similarity ratio
- Geometry 7-1 ratio and proportion answers
- Phenotypic and genotypic ratio of dihybrid cross
- What is velocity ratio of a simple machine
- Perbedaan or dan rr
- Acid test ratio and quick ratio
- Current ratio and quick ratio
- Tolmans rat experiment
- Rr statistics
- Phản ứng thế ankan
- Voi kéo gỗ như thế nào
- Các môn thể thao bắt đầu bằng tiếng đua
- Khi nào hổ con có thể sống độc lập
- Thiếu nhi thế giới liên hoan
- điện thế nghỉ
- Một số thể thơ truyền thống
- Nguyên nhân của sự mỏi cơ sinh 8