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What is the total pressure on a plate surface inclined at an angle θ with the horizontal ?

What is the total pressure on a plate surface inclined at an angle θ with the horizontal ? Correct Answer PA

Total hydrostatic force on inclined plane surface:

Let a plane surface of area A is submerged wholly in fluid of specific gravity γ. The surface is held inclined and making an angle θ with horizontal. Let h* are the distance of centroid of the area from the free surface of the liquid.

F = γAh*      (P = γh*)

F = PA

The total hydrostatic forces on vertical and inclined surface are equal and independent of the angel of inclination.

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