The diagram represents a degenerate triangle due to the fact that it illustrates the use of a strict inequality.
What is a degenerate triangle?
A degenerate triangle simply means a triangle that's formed by here collinear points. It looks like a line segment.
In this case, the diagram represents the case of a degenerate triangle because 4.25 + 4.75 = 9.
The case of a degenerate triangle justifies the use of strict inequality symbols in the triangle Inequality theorem.
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