# Kinds Of Triangles

**Learn about kinds of triangles**. A triangle is among the fundamental shapes used in geometrical analysis and basic mathematics. It is relevant in the initial study of mathematics for students to learn about the basics of the Pythagorean theorem. It is considered a polygon with three line segments and vertices. There are many ways to differentiate the kinds of triangles.

**The first classification is based on the length of the line segments**, which are measured relative to each other. When the line segments have similar or equivalent lengths, this kind is called equilateral triangle. The angles in this type of triangle are all sixty degrees in measurement.

**An isosceles triangle is one that has two line segments of the same length**, with the third line segment invariably shorter than the other two line segments. Two of the three angles in an isosceles triangle are similar in measure. These angles are always at facing the two sides with similar length. There are other schools of thought as to how we should define or differentiate the isosceles triangles from all other kinds of triangles. Some mathematicians maintain that an isosceles triangle should have two or more equal sides, which simply means that equilateral kinds of triangles may also be defined as isosceles triangles, according to this criterion.

**The scalene triangle have all sides unequal in length**, which follows that all angles of a scalene triangle are also different.

**Another way of differentiating the kinds of triangles is according to the angles formed by the three line segments.** A triangle with a ninety degree angle is a right triangle. The obsolete name for this triangle is rectangle triangle. The line segment directly across the right angle in these kinds of triangle is called the hypotenuse, while the other line segments are known as the legs. The right triangle follows the rule of Pythagorean, which states that the total sum of the squares of the two legs’ length is equivaleng the the square of the hypotenuse’s length.

**All other kinds of triangles with no right angle in any of the corners are known as oblique.** These oblique triangles can further be classified in accordance with their measurement relative to the right angle. When all the angles in a given triangle are smaller than the measure of a right triangle, the term for this triangle is acute. On the other hand, if one angle in a triangle measures more than ninety degrees, the triangle is said to be obtuse.

**Here are some more fun facts about the different kinds of triangles.** Triangles are generally two-dimensional, except in the case of non-planar kinds. The interior angles of any triangle when summed up will always be 180 degrees. This means that when a person knows the lengths or measure of the two angles, the measure of the third angle can be calculated easily.

**If the angles of triangles are similar, two triangles are equivalent.** This is the criterion that should be fulfilled to establish similarity. Triangles are also considered equivalent if two of the angles are measured equally.