Class 10 || Maths || Exe || Ch. 08.01 Introduction to Trigonometry   (त्रिकोणमिति) Q. 1. In ∆ABC right angled at B, AB = 24 cm, BC = 7 cm. Determine: (i) sin A, cos A (ii) sin C, cos C Sol. by Pythagorean Theorem H² = P² + B²        = (24)² + (7)²       = 5…