Explanation:
Pointed arches are better approximations of catenary curves that represent the line of compressive force acting in any arch, and thus they exert less outward or overturning thrust. They also present considerable design flexibility, as one can vary to some extent the angle of the arch.
Answer:
a skeleton of arches or ribs on which masonry can be laid to form a ceiling or roof.
Explanation: im realy sorry if im wrong!
