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JSS3: MATHEMATICS - 2ND TERM

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  1. Trigonometry I | Week 1
    3 Topics
    |
    1 Quiz
  2. Trigonometry II | Week 2
    4 Topics
    |
    1 Quiz
  3. Trigonometry III | Week 3
    5 Topics
    |
    2 Quizzes
  4. Similarity I | Week 4
    3 Topics
    |
    1 Quiz
  5. Similarity II | Week 5
    3 Topics
    |
    1 Quiz
  6. Similarity III | Week 6
    2 Topics
    |
    1 Quiz
  7. Similarity IV | Week 7
    2 Topics
    |
    1 Quiz
  8. Variation I | Week 8
    3 Topics
    |
    1 Quiz
  9. Variation II | Week 9
    2 Topics
    |
    1 Quiz
  10. Calculations Involving Standard Form | Week 10
    4 Topics
    |
    1 Quiz
  11. Compound Interest | Week 11
    4 Topics
    |
    1 Quiz

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JSS3: MATHEMATICS – 2ND TERM Trigonometry III | Week 3 Using Sine and Cosine to Solve Problems
Lesson 3, Topic 4
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Using Sine and Cosine to Solve Problems

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Topic Content:

  • Using Sine and Cosine to Solve Problems

 Example 3.4.1:

A ladder of length 5.8 m is placed against a wall so that the foot of the ladder is 3.6 m from the wall. Calculate the angle the ladder makes with the ground. 

Solution

From the image, we can see we have the values for the adjacent and hypotenuse. ...

 

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