Welcome to today’s tutorial on IGCSE Mathematics! In this session, we tackle some of the top IGCSE-level math questions with detailed explanations to strengthen your exam readiness and deepen your problem-solving skills.
You can watch the full class in the video below:
Question 2: Solving Triangle Using Cosine Rule
In triangle ABC:
- AB = 8 cm
- AC = 6 cm
- ∠A = 60°
We are to find side BC.
Using Cosine Rule:
BC² = AB² + AC² − 2(AB)(AC)cos(∠A)
BC² = 8² + 6² − 2×8×6×cos(60°)
BC² = 64 + 36 − 96×0.5 = 100 − 48 = 52
BC = √52 ≈ 7.21 cm
Watch more educational videos and past questions: https://youtube.com/@allcbts
More Questions Coming Next
The blog will continue with additional IGCSE-style questions on geometry, algebra, trigonometry, and word problems. Stay tuned for more real-exam strategies and worked solutions!
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Master IGCSE Maths with top past questions and detailed step-by-step solutions. Boost exam success using proven methods from real Cambridge exam tutorials.
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