The structure consists of a rigid square and a rod, which at point C are either connected to each other by a hinge or freely rest against each other. The structure is subject to: a pair of forces with a moment M = 60 kNm, a uniformly distributed load with an intensity of q = 20 kN/m and two forces. Determine the reactions of the connections at points A, B, C. In the final calculations, take a = 0.2 m. Given: H: F₁ = 10 kN; α₁ = 30⁰; L: F₄ = 40 kN; α₄ = 60⁰; CK.

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