Remember the following kinds of triangles:
By angle:
- Acute triangle: has three angles less than 90º.
-Right triangle: Has one angle that measures exactly 90º.
-Obtuse triangle: Has one angle greater than 90º.
By sides:
- Equilateral triangle: Has three equal sides.
- Isosceles triangle: has two equal side and one side different from the others.
- Scalene triangle: has no equal sides.
Since larger sides are opposite to larger angles, then, a triangle with angle measures of 66º, 82º and 32º cannot have equal sides (they should be opposite to equal angles).
Therefore, a triangle with angle measurements of 66º, 82º and 32º is a scalene triangle.