Post on 14-Mar-2020
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Right Triangle Trigonometry
8‐1 Similarity in Right Triangles
‐ Geometric mean/Mean Proportional
‐ Similar proofs to derive the mean proportional theorem
‐ Proportions in a right triangle
1) Green Workbook: Pages 327 #’s 1‐19
2) Attached Pages: 2 & 3
3) Answers for attached pages: 11 & 12
8‐2 Trigonometric Ratios
‐ Sine
‐ Cosine
‐ Tangent
‐ Revisit Special Right Triangles to find exact values
Trigonometric Ratios: Special Triangles:
1) Green Workbook: Pages 335‐336 #’s 1‐18 & Page 337 #’s 1‐6 & 16‐21
2) Green Workbook Page 337 #’s 7‐12 [Special Right Triangles]
3) Attached Pages: 4 & 5
4) Answers for attached pages: 13 & 14
8‐3 Solving Right Angles
“Find the angles”
‐ Use sin‐1, cos‐1, & tan‐1 to find the measure of angle
1) Green Workbook Page 341 #’s 1‐16
2) Attached Pages: 6 &7
3) Answers for attached pages: 15 & 16
8‐4 Angles of Elevation and Depression
1) Green Workbook: Page 344 #’s 1‐4 & Page 345 #’s 1‐10
2) Attached Pages: 8, 9, & 10
3) Answers for attached pages: 17
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ANSWER KEY
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Angle of Elevation & Depression Worksheet #3
1. X = 78.8 feet
2. X = 59.3 meters
3. X 5.7° [Note 200 yards = 600 feet]
4. X 68.2°
5. X 12.2°
6. X 23.6°