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Mathematics for science and technology
Mathematics for science and technology

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5 Summary of Week 4

This week has built your knowledge and skills in working with right-angled triangles. Now, you should feel more confident that you can calculate unknown angles using a combination of trig functions and the fact that the internal angles for a triangle always add up to 180°

Below is a summary of what you have covered.

  • You gained an understanding of the sine, cosine and tangent functions.
  • You revised Pythagoras theory.
  • You calculated unknown angles and the length of sides of triangles.

Next week you will look in more detail at logarithms and change of base.

You are now halfway through the course. The Open University would really appreciate your feedback and suggestions for future improvement in our optional end-of-course survey [Tip: hold Ctrl and click a link to open it in a new tab. (Hide tip)] , which you will also have an opportunity to complete at the end of Week 8. Participation will be completely confidential and we will not pass on your details to others.

You can now go to Week 5.