Does a Scalene Triangle Exist? Proving Its Existence with a Simple Construction

In summary, a scalene triangle is a three-sided polygon with all sides having different lengths and unequal angles. To prove that a triangle is scalene, all three sides must have different lengths. This classification of triangles is important for understanding their properties and applications. A triangle cannot be both scalene and equilateral, and while it is possible for a scalene triangle to have two equal angles, it cannot have all three angles equal.
  • #1
dancergirlie
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Homework Statement



Prove that a scalene triangle exists

Homework Equations





The Attempt at a Solution



I really don't know how to approach this proof... should I do a direct proof or maybe by contradiction? Any help would be great...
 
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  • #2
The easiest way to show something exists is to demonstrate one. So pick three points in the xy plane that give vertices of a scalene triangle and then verify it is.
 

Related to Does a Scalene Triangle Exist? Proving Its Existence with a Simple Construction

1. What is a scalene triangle?

A scalene triangle is a three-sided polygon in which all sides have different lengths. This means that none of the angles are equal, making it an irregular triangle.

2. How do you prove that a triangle is scalene?

To prove that a triangle is scalene, you must show that all three sides have different lengths. This can be done by measuring each side with a ruler or by using the Pythagorean theorem to calculate the length of each side.

3. What is the importance of proving a triangle is scalene?

Proving a triangle is scalene is important because it helps to classify and categorize different types of triangles. It also helps to understand the properties and characteristics of a scalene triangle, which can be useful in various mathematical and scientific applications.

4. Can a triangle be both scalene and equilateral?

No, a triangle cannot be both scalene and equilateral. An equilateral triangle has three equal sides, while a scalene triangle has three different sides. Therefore, they are two distinct types of triangles and cannot be both at the same time.

5. Is it possible for a triangle to be scalene but still have two equal angles?

Yes, it is possible for a triangle to be scalene and have two equal angles. This type of triangle is called an isosceles triangle and has two equal sides and two equal angles. However, it is not possible for a triangle to be scalene and have all three angles equal.

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