Understanding the parts of a right-angled triangle—hypotenuse, base, and perpendicular—is key to mastering Class 10 Trigonometry. These three sides form the foundation for calculating ratios like sine, cosine, and tangent, and are critical in real-life applications such as construction, architecture, and physics.  What is a Right-Angled Triangle? A right-angled triangle is a triangle where one angle is exactly 90°. The…

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