Area, SM-Bank 104

Calculate the area of the following composite figure in square centimetres (2 marks)

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\(15.5\ \text{cm}^2\)

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\(\text{Area}\)	\(=1\times \text{triangles}+1\times\text{trapezium}\)
	\(=\dfrac{1}{2}\times bh +\dfrac{h}{2}(a+b)\)
	\(=\dfrac{1}{2}\times 5\times 3+\dfrac{2}{2}\times (3+5)\)
	\(=7.5+8\)
	\(=15.5\ \text{cm}^2\)