The trigonometric ratios sine, cosine and tangent are used to calculate angles and sides in right angled triangles. We are now going to extend trigonometry beyond right angled triangles and use it to ...
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Square roots in the Pythagorean theorem
In this math tutorial, we explore how to find the missing side of a right triangle using the pythagorean theorem. We'll specifically look at examples involving a radical to ensure you can solve ...
Being able to identify which formula to use, sine or cosine, and when, is necessary to answer questions on this topic successfully. Check you are confident in how to use the sine and cosine rules.
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