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Rankine's formula for minimum depth of foundation is :

Ah = p/w [(1 - sinθ)/ (1 + sinθ)]^2

Bh = w/p [(1 - sinθ)/ (1 + sinθ)]^2

Ch = p/w [(1 + sinθ)/ (1 - sinθ)]^2

Dh = p/w [(1 - sinθ)/ (1 + sinθ)]

Answer:

A. h = p/w [(1 - sinθ)/ (1 + sinθ)]^2


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