Vault

Let a vault consist of two equal half-Cylinders of length and diameter which intersect atRight Angles so that the lines of their intersections (the ``groins'') terminate in theVertices of a Square. Then the Surface Area of the vault is given by

References

Lines, L. Solid Geometry. New York: Dover, pp. 112-113, 1965.

• Agnesi's Witch
• Agnésienne
• Agonic Lines
• Ahlfors-Bers Theorem
• A-Integrable
• Airy Differential Equation
• Airy-Fock Functions
• Airy Functions
• Airy Projection
• Aitken Interpolation
• Aitken's Delta Squared Process
• Ajima-Malfatti Points
• Albanese Variety
• Albers Conic Projection
• Albers Equal-Area Conic Projection
• Alcuin's Sequence
• Aleksandrov-Cech Cohomology
• Aleksandrov's Uniqueness Theorem
• Aleph
• Aleph-0
• Aleph-1
• Alethic
• Alexander-Conway Polynomial
• Alexander Ideal
• Alexander Invariant