It has 3 sides
It has 3 interior angles that add up to 180 degrees
It will tessellate leaving no gaps or overlaps
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1. It has three angles that are unequal 2. Its has three unequal sides
Some of its attributes are:* Three congruent sides * Three congruent angles * Each of these angles has a measure of 60° (since the sum of the angles must be 180°) * Three axes of symmetry * Looks the same when rotated 120°, or a multiple thereof * All equilateral triangles are similar to one another
That is the definition of a triangle. If it did not have three sides it would not be a triangle. If it did not have three angles, it would not be a triangle.
A triangle has 3 sides A triangle has 3 interior angles that add up to 180 degrees A triangle has 3 exterior angles that add up to 360 degrees A triangle can be a scalene A triangle can be an obtuse A triangle can be a right angle A triangle can be an isosceles A triangle can be an equilateral
A triangle with three sides is a polygon.