The bridge

Across the circle lakepasses through its center bridge over the lake. At three different locations on the lake shore are three fishermen A, B, C. Which of fishermen see the bridge under the largest angle?

Result

α =  90 °
β =  90 °
γ =  90 °

Solution:

α=β=γ=90\alpha = \beta = \gamma = 90 ^\circ



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