There are several types of arches used in architecture, including:
1. Round arch: This is a semicircular arch, with a constant radius throughout.
2. Pointed arch: This has pointed ends, and the height is greater than the width.
3. Segmental arch: This is a low, wide arch with a gentle curve.
4. Elliptical arch: This has a wider curve than the round arch and is more flattened at the top and bottom.
5. Trefoil arch: This is a pointed arch with three lobes.
6. Ogee arch: This is an S-shaped arch, with two curves of different radii.
7. Horseshoe arch: This is a rounded arch with an inward curve at the base, resembling a horseshoe.
8. Basket arch: This is a flattened arch with a horizontal top and curved sides.
9. Lancet arch: This is a pointed arch with a very narrow width, often found in Gothic architecture.
10. Tudor arch: This is a pointed arch with a flattened or depressed top, often used in English Tudor architecture.
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