A Z-channel wing spar is constructed using 4 stringers and 3 very thin skin panels. The cross-section properties of each stringer are (A = 0.4 in2, Iyy = 0.2 in4, Izz = 0.3 in4, Iyz = 0.3 in4). Calculate the Z-channel cross section product of inertia (Iyz) for b = 2.33 inch and h = 2.68 inch. Neglect the skin. (Units: inch^4).

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step-by-step explanation:

the correct answer option is d. la = πrs.

step-by-step explanation:

we know that for a right cone, the lateral surface area is given by:

lateral area of right cone =

here the value under the square root is equal to slant height so replacing this value by in the formula to get:

lateral area of right cone =

therefore, the correct answer option is d.