If only two sides of a triangle are the same - it is called an Isosceles Triangle
If all the sides are the same - it is called an Equilateral Triangle
If the triangle has a right angle or a 90 degree angle - it is called a Right angle triangle
If all the sides are different - it is called a Scalene Triangle
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In this question, all of the lengths are different, so the triangle is a Scalene Triangle
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Answer
Scalene Triangle