What would a curve with the shape of an isoceles triangle indicate?

The triangle is the only polygon for which the shape remains the same, as long as the length of the sides doesn't change (a rafter).

The triangle is a simple figure, but however, many triangles can be distinguished, many of them carrying an own name. For the acute-angled triangle (or acute triangle) all angles are smaller than 90 degrees. When a triangle has an obtuse angle, it's an obtuse-angled triangle (or obtuse triangle).

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