A-LevelMathematicsCircular measureMay/June 2021Paper 1 Q1211 Marks
The diagram shows a cross-section of seven cylindrical pipes, each of radius 20 cm, held together by a thin rope which is wrapped tightly around the pipes. The centres of the six outer pipes are A, B, C, D, E and F. Points P and Q are situated where straight sections of the rope meet the pipe with centre A. [Figure 12.1]
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