What is a groin vault? a. A groin vault is a structure that resembles the top half of a sphere. b. A groin vault comes from the extension of a round arch, similar to a long tube of arches. c. A groin vault has two barrel vaults of the same diameter which cross or intersect one another. d. A groin vault has two barrels which extrude into a two dimensional structure.

A. a groin vault has two barrel vaults of the same diameter which cross or intersect one another.

Explanation:

Groin vault. A groin (or cross) vault is formed by the perpendicular intersection of two barrel vaults. A rib (or ribbed) vault is supported by a series of arched diagonal ribs that divide the vault's surface into panels. A fan vault is composed of concave sections with ribs spreading out like a fan

A. a groin vault has two barrel vaults of the same diameter which cross or intersect one another.

in the meantime what is your guys opinion on straight people

12-bar blues chorus = a a b

the answer is letter b. false. fugue is a complex musical composition that does not occur or come together at the same time. in fact, it is composed of a number of voices or parts where the theme is introduced in one part and successively imitated in other parts.