An isosceles triangle has at exactly two congruent sides, while an equilateral triangle has all equal sides.
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that would be an isosceles triangle, although the def. of an isosceles triangle is: a triangle that has at least 2congruent sides.
right angled isosceles triangle
-- If a triangle has an obtuse angle in it, then it's called an obtuse triangle. -- No triangle can have more than one obtuse angle in it . -- Right triangles, acute triangles, and equilateral triangles don't have any obtuse angles in them.
Two names for a triangle are "scalene triangle" and "isosceles triangle." A scalene triangle is a triangle with three unequal sides, while an isosceles triangle is a triangle with at least two equal sides. These names are based on the measurements of the sides of the triangle and help classify different types of triangles based on their properties.
right-angle triangle has at least one right angle .