Answer:
Isosceles triangle
Step-by-step explanation:
An isosceles triangle is a triangle with two sides being equal in size.
The length or magnitude between two points is calculated by the formula;
√((x₂ − x₁)² + (y₂ − y₁)²)
Therefore;
Length AB=Sqrt( (3)² + (-8)²)
= Sqrt 73
= 8.544 units
Length BC = Sqrt ((8²) + (-3)²)
= Sqrt 73
= 8.544 units
Length AC = Sqrt ((11²) + (-11)²)
= Sqrt 242
= 15.524 units
Therefore, <u>AB and BC are equal , which means triangle ABC is an isosceles triangle.</u>