Triangle A is the only possible name from the information provided.
Another name is its correct name: an isosceles triangle.
Tri means three, and there are three angles to a triangle so that's how the triangle got its name.
irregular triangle
right triangle
parallelogram
If it's a proper 3D triangle, it's a tetrahedron. It has four sides, all triangular. If it has four triangular sides and a square base, it's a pyramid.
A specific name for a triangle depends on its characteristics. A specific name for a triangle depends on its characteristics. A specific name for a triangle depends on its characteristics. A specific name for a triangle depends on its characteristics.
a triangle
... "How many degrees are in a triangle?" 180. Learn proper English, please.
Triangle A is the only possible name from the information provided.
Another name is its correct name: an isosceles triangle.
Tri means three, and there are three angles to a triangle so that's how the triangle got its name.
irregular triangle
right triangle
Triangle
Equilateral triangle, regular triangle.