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Trigonometry

Trigonometry. Chapter 15. Right Triangles. Used for finding side lengths and angles of right triangles. Trigonometric Ratios in Right Triangles. Ex. 1. Ex. 2. Ex. 1. Using trigonometry in geometric figures.

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Trigonometry

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  1. Trigonometry Chapter 15

  2. Right Triangles

  3. Used for finding side lengths and angles of right triangles Trigonometric Ratios in Right Triangles

  4. Ex. 1 Ex. 2

  5. Ex. 1 Using trigonometry in geometric figures

  6. Ex. 2 A rhombus has diagonals of length 10 cm and 6 cm. Find the smaller angle of the rhombus. Ex. 3

  7. Ex. 4 A chord of a circle subtends an angle of 112° at its centre. Find the length of the chord if the radius of the circle is 6.5 cm.

  8. Angles of Elevation and Depression Problem Solving using Trigonometry

  9. Ex. 1 When measured from a point 12.4 m from its base, the angle of elevation to the top of a tree is 52°. Find the height of the tree.

  10. Ex. 2

  11. Ex. 1 3-D Problem Solving

  12. Ex. 2

  13. Ex. 3

  14. Kylie measures a 32° angle of elevation from a point on level ground to the top of a building 120 meters high. She walks towards the building until the angle of elevation is 45°. How far does she walk? Exit Ticket

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