Answer:
The points form a equilateral triangle of side 5.78 units.
Explanation:
The length of the sides of the triangle is calculated using the distance formula.
The distance between the points (x₁,y₁) and (x₂,y₂) is

Now,
AB =

BC =

CA =

The length of the sides of the triangle is 5.78. All the sides are equal in length. It is an equilateral triangle.