File Name: sine and cosine rule worksheet .zip
The solution for an oblique triangle can be done with the application of the Law of Sine and Law of Cosine, simply called the Sine and Cosine Rules. An oblique triangle, as we all know, is a triangle with no right angle. It is a triangle whose angles are all acute or a triangle with one obtuse angle.
I am now a retired teacher having taught for over 40 years in the UK at secondary level. I wanted to share my love of Mathematics and teaching by providing a good set of resources which will more than cover all your needs for as many topics as I can and at good value for money. I am trying to cover many topics from foundation level GCSE up to grade 9 at higher level in a way that is interesting and relevant. I hope you like my style! Sine Rule 2 - use the Sine rule to find the missing angles no ambiguous case - 10 Questions.
The Cosine Rule. Answer the questions in the spaces provided. The marks for each question are shown in brackets. GCSE Maths. Cosine Rule Questions. Using the cosine rule, in the first form, on triangle shows that.
There are three identities relating to the trigonometric functions that make working with triangles easier:. The area rule states that the area of any triangle is equal to half the product of the lengths of the two sides of the triangle multiplied by the sine of the angle included by the two sides. High marks in maths are the key to your success and future plans. Test yourself and learn more on Siyavula Practice. So far we have only applied the trigonometric ratios to right-angled triangles. We now expand the application of the trigonometric ratios to triangles that do not have a right angle:.
Mixed Questions – Sine and Cosine Rule. For each triangle find the missing values and calculate the area. With these questions try and see if you can figure out.
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The Cosine Rule. Answer the questions in the spaces provided. The marks for each question are shown in brackets. GCSE Maths. Cosine Rule Questions.
You will need to know at least one pair of a side with its opposite angle to use the Sine Rule. Practice Questions Work out the answer to each question then click on the button marked to see if you are correct. Finding Sides If you need to find the length of a side, you need to know the other two sides and the opposite angle. Sides b and c are the other two sides, and angle A is the angle opposite side a. These examples illustrate the decision-making process for a variety of triangles: e.
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