IP EMaths Notes (Upper Sec, Year 3-4): 09) Right-Triangle Trigonometry
08 Nov 2025, 00:00 Z
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Q: What does IP EMaths Notes (Upper Sec, Year 3-4): 09) Right-Triangle Trigonometry cover?
A: Use sine, cosine, and tangent ratios alongside Pythagoras to evaluate sides and angles quickly.
Right-angled triangles provide fast access to heights, bearings, and resultant forces. Remember which side is opposite, adjacent, or hypotenuse relative to the marked angle.
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These notes align with SEAB GCE O-Level Mathematics (4052) content used in IP programmes (exams from 2026).
Status: SEAB O-Level Mathematics 4052 syllabus (exams from 2026) checked 2025-11-30 - scope unchanged; remains the reference for these notes.
Ratio recap
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