Mathematics Class 10
Some Applications of Trigonometry
Find heights and distances from one angle and one walk, using a right triangle.
11 lessons · ~83 min total
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Lessons in this topic
- 0 Start here A roadmap: elevation, depression, which ratio to use, and heights from two readings. · 4 min You are here
- 1 The angle you lift your eyes Find a height from one walk and the angle of elevation. · 8 min
- 2 The angle you lower your eyes Find a distance from the angle of depression. The angle below it is equal. · 8 min
- 3 Which quotient, which side Name the side you know and the side you want. That pair picks tan, sin or cos. · 8 min
- 4 Two posts and one tower Two readings from one road give two heights that must match. · 8 min
- 5 One vantage, two sight lines A statue on a pedestal is a difference of two heights. · 8 min
- 6 Up and down from one window One window gives a rise and a drop. Add them for the tower. · 8 min
- 7 Finding the angle Find the sun angle from a height and a shadow, using tan. · 8 min
- 8 The whole solve Solve any problem in six steps: read, draw, name, pick, divide, check. · 8 min
- 9 The big picture Eight ideas, tied back together. · 6 min
- 10 Track quiz Cheat-sheet table plus a reveal quiz — one question per idea. · 9 min
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