A three sided polygon is called a triangle; there is no other name for it.
A triangle is the 2D name of a certain shape. A triangle has three sides and, in the case of a right angled triangle, has an angle of 90 degrees in one corner. There are many other names depending on the angles used.
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An isosceles triangle is a triangle with at least two equal sides. While there are no other names, an equilateral triangle has 3 equal sides so it is also an isosceles triangle
A 'mirror image'
triangle
it the shape name is the sqaured triangle
equilateral
Triangle means 3 angles. No other shape exists and any three angle shape is a triangle
Every triangle has three sides. If it has any number of sides other than three, then it isn't a triangle.
a trignal has 3 sides is it trilateral other wise it depends on the angles and sides eg a acute angle triangle, a equalateral triangle, a scalene triangle
A specific name for a triangle depends on its characteristics. A specific name for a triangle depends on its characteristics. A specific name for a triangle depends on its characteristics. A specific name for a triangle depends on its characteristics.
a triangle
A congruent triangle is a triangle with all its sides being unequal to each other.
a trignal has 3 sides is it trilateral other wise it depends on the angles and sides eg a acute angle triangle, a equalateral triangle, a scalene triangle
Triangle
An equilateral triangle can also be called a "regular" triangle