examples of arches
Arches: curved constructions supported on each side by piers.
trefoil 
Arch with three lobes.
Tudor 
Flattened equilateral arch that is characteristic of the style that flourished in 16th-century England.
stilted 
Arch that takes the form of a semicircle but is higher than the semicircular arch.
basket handle 
Arch that is lower than it is wide and forms an ellipse.
horseshoe 
Arch whose extremities extend beyond a semicircle; it is characteristic of Arab architecture.
ogee 
Arch comprised of two symmetrical curves that are alternately convex and concave.
lancet 
Equilateral arch whose span, or distance between the piers, is reduced.
equilateral 
Arch forming an acute angle that is characteristic of the Gothic vault.