Question

what are superstucture​

Answer 1

Answer:

it is one kind of structure to much old structure in ancient year.

Answer 2

Answer: a structure that is build on top of something .

it’s all load is realied on the keystone.

this architexture form is called arcuate.

it was used in ancient periods in India .

A “true” arch. The “keystone” at the centre of the arch transferred the weight of the superstructure to the base of the arch.

Explanation:

I hpe it helps and if does make as a brainlist

and sorry if the spelling of brainlist is wrong