Question

What is the length of the longest side of a triangle that has vertices at (-4,2), (-4,5), and (3,2)

Answer 1

That length is the distance between (-4, 5) and (3, 2), computed using the Pythagorean theorem as
.. √((5 -2)^2 +(-4-3)^2) = √(9+49)
.. = √58
.. ≈ 7.616