Question

Why are dams and high rise buildings became wider in base
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Answer 1

because the pressure of water is much greater deeper down and so to withstand this pressure, they r wider in n base

Answer 2

HELLO MATE

HERE IS YOUR ANSWER

In dams, the wider bases are required to counteract the hydrological forces which can topple the dam...

&

In buildings, it gives stability as well as to distribute the load over wider area....

HOPE IT HELP U..