Question

why
air conditioned building have Double wall window

Answer 1

to keep air inside and not to go it outside the house

Answer 2

Hi
if you like my answer then mark it as brainliest it's comes above my answer.
Ans = Air conditioned buildings have double walled windows because air trapped between two layers act as an insulator of which prevents outside heat entering into thebuilding. This helps to keep the building cool.

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