Arc Length, Area of Sectors,Segments (radians) past paper questions for IB SL and Additional Maths

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Some past paper questions for IB Standard Level (SL) and Additional Maths IGCSE. Using formulae for arc length, sector area, area triangle, SOHCAHTOA, Sine and Cosine rule, area segment etc.
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hello. I think you did the cosine part wrong cause if u do it in a calculator u get 4.999 which is basically 5 but it doesn't make sense cause the full radius is 5 and the x length is less than 5. could u help me pls

mariaalejandra