Area, SMB-017

A square pyramid with a slant height of 15 centimetres is pictured below.

Find the total surface area of the pyramid, including its base. (2 marks)

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\(400\ \text{cm}^2 \)

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\(\text{SA}\)	\(= (10 \times 10) + 4 \times (\dfrac{1}{2} \times 10 \times 15)\)
	\(=100 + 4(75) \)
	\(=400\ \text{cm}^2 \)