Q » What is a pendentive and how does it support a dome?

Bram vd Veer

08 Dec, 2025

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A » A pendentive is an architectural element that facilitates the placement of a circular dome over a square room. It is a triangular segment of a sphere, curving inward and downward, connecting the dome's base to the building’s corners. Pendentives distribute the dome's weight evenly to the supporting pillars or walls, allowing for larger and more stable domes, thus revolutionizing architectural design in structures like cathedrals and basilicas.

Michael

08 Dec, 2025

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All Other Answer

A »A pendentive is a triangular section of vaulting that supports a dome by transferring its weight to four piers, allowing the dome to be placed over a square or rectangular space. It curves upward and outward, forming a continuous surface that connects the dome to the supporting structure, enabling a smooth transition between the two.

David

08 Dec, 2025

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