A right-angled triangle can have equal sides, but does not have to. A right-angled triangle with two equal sides CANNOT be an equilateral triangle. A right-angled triangle cannot be an equilateral triangle.
Divide a square along the diagonal, and you are left with two right-angled triangles with two sides of equal length.
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A question without any equal sides is a scalene triangle. A scalene triangle, by definition, is a triangle without any congruent sides. Of course, there are varying definitions, but they all have the same gist. Once again, a triangle without any equal sides is a scalene triangle!
A triangle with 3 equal sides is an equilateral triangle. A triangle with 2 equal sides is an isosceles triangle. There is no such thing as a triangle with ONE equal side. Equal to what? If you wish to stretch it and say each side is (equal to itself only ) not equal to any others it is a scalene triangle.
An isosceles triangle has two sides with equal measures. The third side can be any length.
An equilateral triangle has three equal sides1. 1. Any triangle has only three sides. A triangle is a closed figure that is bounded by three straight lines.
An isoceles triangle has only 2 equal sides and angles. An equilateral triangle has three of each. Any regular polygon has at least 2 equal sides and angles.