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A frustum, a truncated cone or pyramid, is used in bucket design, telescope mirrors, and architectural pillars. Its volume formula (⅓πh(r₁² + r₁r₂ + r₂²)) is key in manufacturing and optics. The surface area formula is: Surface Area = π(r₁ + r₂)l + πr₁² + πr₂². |
Formulashapes