1. equilateral : 3 sides are equal
2.scalene : 2 sides are equal
3. isosceles : no sides are equal
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there is many ways to write when classifying a triangle, you can classify it by its sides or angles. When you classify it by angles you can classify it by acute, obtuse, and right triangle. when classyfing it by sides its isosceles, equilateral, and scalene!
Isosceles, equilateral, right angle, obtuse and scalene
You can classify a triangle by its sides or by its angles. I.e: A triangle with three equal sides is an equilateral triangle A triangle with three equal angles is an equiangular triangle A triangle with two equal sides is an isosceles triangle
If the triangle is less than 90 degrees, it is an acute triangle
Two examples are:1. 3 is a prime number2. 3 is an odd number