Learn all the basic trigonometric ratios—sin, cos, tan, cot, sec, and cosec—using a simple right-angled triangle. This short explanation helps 10th class students and aspirants of SSC, Railways, Groups, and all government exams understand how opposite side, adjacent side, and hypotenuse are used to form each trig ratio. Perfect for quick revision and exam preparation. SEO Keywords: trigonometry ratios, right angled triangle explanation, sin cos tan easy trick, 10th class maths trigonometry, govt