Math Teacher on Instagram: "✨ ♾️The Sine Rule ♾️— Proven Step by Step! ✨ Today we explored one of the most powerful tools in trigonometry: The Sine Rule. It allows us to connect side lengths and angles in any triangle — not just right-angled ones. 📐 The Sine Rule states: sin A /a = sin B / b = sin C/ c A is an angle and a is the length of the side that is opposite to angle A. In the proof, we dropped an altitude from one vertex to create two right-angled triangles. By applying basic trigonometr

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