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A chord AB of a circle centre O and radius 21 cm is 36 cm...

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A chord AB of a circle centre O and radius 21 cm is 36 cm long Express the angle AOB in radians Use your result in a to calculate correct to three significant figures i the length of the arc AB the area of the sector AOB the area of the minor segment cut off by the chord AB Take 3 142 ii iii

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