Explain in one short sentence why for an acute angle in a right-angled triangle.

MATHEMATICS · Subjective · A Level · Mathematics · Trigonometry · Trigonometry

Problem

Explain in one short sentence why tan⁡A=sin⁡Acos⁡A\tan A = \dfrac{\sin A}{\cos A} for an acute angle AA in a right-angled triangle.

Related theory

Browse the problem library