The sides of right-angled triangles are labelled opposite, hypotenuse and adjacent. Trigonometry explores the relationship between sides and angles in right-angled triangles. The hypotenuse is the ...

which applies to all non-isosceles right-angled triangles, and adds four others also made using trigonometry. The authors ...

Ne'Kiya Jackson and Calcea Johnson made national headlines, won their school a large grant, and were invited to publish papers.

Ne'Kiya Jackson and Calcea Johnson from Louisiana used trigonometry to prove the 2,000-year-old Pythagorean theorem, which ...