a. A roof can be made by placing a horizontal beam across two vertical columns. This style of architecture is called trabeate or corbelled type of architecture. This style is used in the construction of temples, mosques, and tombs.
b. The weight of the superstructure above the doors and windows was sometimes carried by arches. The roofs too used this principle and were converted into vaults and domes. This architectural form is called ‘Arcuate’. This is used in constructing roofs and domes of temples and mosques.
c. The Vijayanagara style of architecture had been developed by using the techniques of Chola and Pandyan styles. This included Vimanas and Gopurams. Towers on the central shrines were dwarfed other distinctive features of this style include mandapams or pavilions and long pillared corridors that ran around the shrines with in the temple complex.