A square pyramid has a base side of 12 cm and a slant height of 10 cm. Find its lateral surface area.

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Accepted Answer

1. Perimeter of the square base: $4	imes12=48$ cm.
2. Formula for lateral area: $L=\frac{1}{2}	imes	ext{perimeter}	imes	ext{slant height}$.
3. Substitute values: $L=\frac{1}{2}	imes48	imes10=240$.
4. So the lateral surface area is **$240	ext{ cm}^2$**.
FINAL_ANSWER: a

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