Area, SM-Bank 137

The sector shown has a radius of 13 cm and an angle of 230°.

What is the area of the sector to the nearest square centimetre? (2 marks)

NOTE: \(\text{Sector area}=\dfrac{\theta}{360}\times \pi r^2\)

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\(339\ \text{cm}^2\ (\text{nearest cm}^2)\)

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\(\text{Sector area}\)	\(=\dfrac{\theta}{360}\times \pi r^2\)
	\(=\dfrac{230}{360}\times \pi\times 13^2\)
	\(=339.204\dots\)
	\(\approx 339\ \text{cm}^2\ (\text{nearest cm}^2)\)