Absolutely false. A scalene triangle by definition has no side equal to another.
An isosceles triangle by definition has two equal sides.
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False
An equiangular triangle is always equal. A scalene triangle does not have to have any equal sides. Therefore an equiangular triangle in never scalene.
A scalene triangle is one that has three lengths of different sizes. It is quite possible for a right triangle to have three sides of different length.
A triangle has 3 sides. A regular triangle has all EQUAL sides. An isosceles triangle has 2 EQUAL sides. A scalene triangle has NO equal sides. Equal = parallel..basically equal and parallel are the same thing, in this conversation.
The converse is, "If a triangle is isosceles, then it is equilateral." Neither is true.