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Knoji Tuition on Instagram: "Mini Maths Lesson: Solving 3D Trig in Extension 1 🔺 3D trig questions can look like a nightmare at first glance with all those planes, pyramids, and confusing angles. But with the right steps, you can slice through the mess and find what you need! Here’s how to approach it: 👉 Step 1: Redraw! Flatten the 3D problem into 2D triangles. Label everything clearly: sides, angles, heights. 👉 Step 2: Identify which triangle has what you need (usually a right-angled triangl