Find the volume of a pyramid with a pentagonal base with each side measuring 6 cm if its altitude is 12 cm. 2. The lateral edge of a pyramidal church spire is 18 m. Each side of its octagonal base is 7 m. What will be the cost of painting the spire at ₱ 80.00 per square meter?

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A: Let the shorter side be x and the longer side be y.

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