The earth pressure of a soil at rest, is proportional to (where φ is – McqOptions

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1.	The earth pressure of a soil at rest, is proportional to (where φ is the angle of internal friction of the soil)
A.	tan (45° - φ)
B.	tan (45° + φ)
C.	tan² (45° - φ)
D.	none of these
Answer» E.

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