Answers

2015-10-10T13:31:50+05:30
Dams r made broader at the bottom because the work of dam is to hold large quantity of water because the pressure of water increased by deapth.
The buildings r made broader in the bottom in order to hold heavy weight of the building.
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2015-10-10T14:31:50+05:30
As we know that if area increases pressure decreases.The work of dam is to hold large amount of water.If they are having broader base they will exert less pressure and willnot go down in land
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