2010 June C2 Q6
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Earned Point(s): 0 of 0, (0) The diagram above shows the sector OAB of a circle with centre O , radius \({9cm}\) and angle \({0.7}\) radians (a) Find the length of arc \(AB \). \(AB =\) \(cm\) (b) Find the area of the sector \(OAB \). Area= \( cm^2 \) The line \(AC \) shown in the diagram above is perpendicular to \(OA \), and \(OBC \) is a straight line (c) Find the length of \(AC \), giving your answer to \(2 \) decimal places. \(AC =\) \(cm\) The region \(H \) is bounded by the arc \(AB \) and the lines \(AC \) and \(CB \). (d) Find the area of \(H\), giving your answer in \(2\) decimal places. \(H =\) \(cm^2\)
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