Daily Galaxy on MSN2mon
Two American Teenage Girls Challenge 2,000 Years of Mathematics with a Groundbreaking Proof of Pythagoras’ Theorem
Any attempt at using sine, cosine, or tangent to verify Pythagoras’ equation ... they unveiled their groundbreaking proof in ...
BBC2y
Using the sine and cosine rules to find a side or angle in a triangle
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 ...
BBC4y
Trigonometric skills
Sine, cosine and tangent all have different positive or negative values depending on what quadrant they are in. Calculating the area of a triangle using trigonometry Trigonometry can be used to ...