Class 10 Maths · Chapter 9 · CBSE / NCERT
Some Applications of Trigonometry
Heights and distances. You’ll learn angles of elevation and depression, and use trigonometry to find the height of towers and buildings or the width of a river.
9 short lessons · about 41 minutes in all
What you’ll learn
- 1Looking Up and Looking Down: Elevation and Depression4 min
- 2Picking tan, sin, or cos for a Height Problem4 min
- 3Solving One Right Triangle for a Height4 min
- 4Adding Back the Observer's Own Height4 min
- 5A Flagstaff on Top of a Building: Two Angles, One Point5 min
- 6One Tower, Two Viewing Points: Shadows and Angles5 min
- 7Two Buildings, One Point at the Top5 min
- 8A Bridge Over a River: Depression to Both Banks5 min
- 9Turning a Trig Distance Into Speed and Time5 min
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Looking Up and Looking Down: Elevation and Depression · about 4 minutes
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More Class 10 Maths
The other 13 chapters.
CH 1Real Numbers8 lessonsCH 2Polynomials8 lessonsCH 3Pair of Linear Equations in Two Variables8 lessonsCH 4Quadratic Equations8 lessonsCH 5Arithmetic Progressions9 lessonsCH 6Triangles9 lessonsCH 7Coordinate Geometry9 lessonsCH 8Introduction to Trigonometry9 lessonsCH 10Circles6 lessonsCH 11Areas Related to Circles5 lessonsCH 12Surface Areas and Volumes3 lessonsCH 13Statistics6 lessonsCH 14Probability6 lessons
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