Many authors, mathematicians and historians have stated that Pythagoras first used this ratio in geometry. However, the ...

Objectives To evaluate the impact of ski geometry data and standing height ratio on anterior cruciate ligament (ACL) injury risk of male and female recreational skiers. Methods A retrospective ...

The adjacent side (\(a\)) is next to the angle in question (\(x\)). The trigonometric ratios for the angles 30°, 45° and 60° can be calculated using two special triangles. An equilateral ...