"مثلثیاتی دالہ" کے نسخوں کے درمیان فرق

[[ملففائل:Academ Base of trigonometry.svg|thumbتصغیر|300px|upright=2|Base of trigonometry:  if two [[Right triangle|right triangles]] have equal [[زاویہ|acute angles]], they are [[Similarity (geometry)|similar]], so their side lengths [[متناسبیت|are proportional]].  Proportionality [[constant (mathematics)|constants]] are written within the image:  sin ''θ'',  cos ''θ'',  tan ''θ'',  where ''θ''  is the common measure of five acute angles.]]