I need help, anyone know this.

The three side lengths of the triangle is determined as 5, 4, and 6.4.
The horizontal length of the triangle is calculated as follows;
a = 3 - (-2)
a = 5
b = 1 + 3 = 4
c² = a² + b²
c² = 5² + 4²
c² = 41
c = √41
c = 6.4
Learn more about length of triangles here: https://brainly.com/question/2217700
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