Applications of Plane Geometry: Calculating Areas of Composite Regions

Applications of Plane Geometry: Calculating Areas of Composite Regions

Secondary 3

\(O\) is the centre of a circle of radius \(6\) cm and \(OQR\) is a triangle.
Calculate

the length of arc \(QSR\),
the area of the shaded segment.

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Answer:(i) \(12.6\text{ cm}\) (ii) \(22.1\text{ cm}^2\)

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