Perimeter of a square when only vertices are given.

Question

Find the perimeter of a square with the following vertices:

<A (3, 3)

<B (3,-5)

<C (-5, -5)

<D (-5, 3)

Answer 1

Points A and B have the same x-coordinate, so the distance between them just the difference in their y-coordinates: 3 - (-5) = 8. Since it's a square, all sides have a length of 8, which you can verify by determining the length of the other 3 sides. What is the perimeter of a square of side length 8?