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A square pyramid has a square base and four triangular faces meeting at a point (apex). The Great Pyramid of Giza is the most famous example. Volume is always ⅓ of a prism with the same base and height.

ステップバイステップガイド

1. 1Volume = (1/3) × base area × height
2. 2Slant height = √(h² + (a/2)²) for square base
3. 3Lateral area = (1/2) × perimeter × slant height

解いた例